{"basis":"claimed","id":"CVE-2024-27834","name":"Apple Multiple Products Improper Authentication Vulnerability","vendorProject":"Apple","product":"Multiple Products","publishedAt":"2024-05-13","cvss":{"score":8.1,"severity":"HIGH","version":"3.1"},"exploited":{"kevAdded":"2026-11-04","dueDate":"2026-11-18","ransomware":false},"epss":{"score":0.01414,"percentile":0.72829,"date":"2026-11-05"},"coverage":{"cloudflare":{"status":"no_history","firstOn":null,"daysToRule":null},"aws":{"status":"none","firstOn":null,"daysToRule":null},"azure":{"status":"none","firstOn":null,"daysToRule":null},"google":{"status":"no_history","firstOn":null,"daysToRule":null},"fastly":{"status":"no_history","firstOn":null,"daysToRule":null},"vercel":{"status":"no_history","firstOn":null,"daysToRule":null},"f5":{"status":"none","firstOn":null,"daysToRule":null},"akamai":{"status":"no_source","firstOn":null,"daysToRule":null},"crs":{"status":"none","firstOn":null,"daysToRule":null}},"title":null,"description":"The issue was addressed with improved checks. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, watchOS 10.5. An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.","cwes":["CWE-287"],"vendors":[{"vendor":"cloudflare","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"aws","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"azure","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"google","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"fastly","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"vercel","status":"no_history","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"f5","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"akamai","status":"no_source","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]},{"vendor":"crs","status":"none","basis":"claimed","firstOn":null,"firstIsNew":false,"daysToRule":null,"daysAtMost":null,"freePlan":false,"claims":[]}],"updatedAt":"2026-11-06T16:17:38.281Z","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total"},"kevAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","kevNotes":"https://support.apple.com/en-us/120896 ; https://support.apple.com/en-us/120898 ; https://support.apple.com/en-us/120901 ; https://support.apple.com/en-us/120902 ; https://support.apple.com/en-us/120903 ; https://support.apple.com/en-us/120905 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2024-27834","references":[{"url":"https://support.apple.com/en-us/120896","name":null,"tags":[]},{"url":"https://support.apple.com/en-us/120898","name":null,"tags":[]},{"url":"https://support.apple.com/en-us/120901","name":null,"tags":[]},{"url":"https://support.apple.com/en-us/120902","name":null,"tags":[]},{"url":"https://support.apple.com/en-us/120903","name":null,"tags":[]},{"url":"https://support.apple.com/en-us/120905","name":null,"tags":[]}],"affected":[{"vendor":"Apple","product":"Safari","affected":["before 17.5"],"fixed":[]},{"vendor":"Apple","product":"iOS and iPadOS","affected":["before 16.7.8","before 17.5"],"fixed":[]},{"vendor":"Apple","product":"macOS","affected":["before 14.5"],"fixed":[]},{"vendor":"Apple","product":"tvOS","affected":["before 17.5"],"fixed":[]},{"vendor":"Apple","product":"watchOS","affected":["before 10.5"],"fixed":[]}],"briefing":{"status":{"id":"known_exploited","label":"Known exploited"},"why":"CISA lists CVE-2024-27834 as exploited in the wild since 2026-11-04. No edge WAF vendor names it in a changelog, so default managed rules may or may not catch it.","who":"Teams running Apple Safari (before 17.5), Apple iOS and iPadOS (before 16.7.8; before 17.5) and Apple macOS (before 14.5).","what_to_do":[{"text":"Find the version you run. In Terminal:","command":{"where":"In Terminal","command":"sw_vers"}},{"text":"Apply the vendor's fix; the advisory lists the affected and fixed versions.","href":"https://support.apple.com/en-us/120896","linkText":"support.apple.com"},{"text":"CISA's required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. US federal agencies must act by 2026-11-18."},{"text":"Review exposed instances for signs of compromise: it was exploited before many systems were patched, and a later patch does not undo access already gained."},{"text":"Do not rely on WAF defaults: no edge vendor names this CVE. Restrict access to the vulnerable component or add a custom rule until it is patched.","href":"#edge","linkText":"Edge coverage"},{"text":"Check which WAF sits in front of your site and whether it covers this CVE.","href":"#check","linkText":"Check your domain"}],"evidence":[{"heading":"CVE record","text":"CVSS 3.1 8.1 (high). Weakness: CWE-287.","links":[{"label":"CVE-2024-27834","href":"https://www.cve.org/CVERecord?id=CVE-2024-27834"},{"label":"NVD","href":"https://nvd.nist.gov/vuln/detail/CVE-2024-27834"}]},{"heading":"Vendor advisory","text":"Fixes and mitigations the CVE record links to. Check affected builds against the vendor, including backports.","links":[{"label":"support.apple.com","href":"https://support.apple.com/en-us/120896"},{"label":"support.apple.com","href":"https://support.apple.com/en-us/120898"},{"label":"support.apple.com","href":"https://support.apple.com/en-us/120901"},{"label":"support.apple.com","href":"https://support.apple.com/en-us/120902"}]},{"heading":"Exploit evidence","text":"No public exploit code found in Exploit-DB, Metasploit, nuclei-templates or GitHub. That does not mean none exists.","links":[]},{"heading":"Seen exploited","text":"Listed in an independent exploited-vulnerability catalog on 4 Nov 2026. Claimed in 3 Telegram posts (unverified).","links":[]},{"heading":"CISA KEV","text":"Added 2026-11-04, federal due date 2026-11-18 (catalog 2026.11.04, checked 2026-11-06).","links":[{"label":"CISA KEV catalog","href":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-27834"}]},{"heading":"EPSS","text":"1.41% probability of exploitation activity in the next 30 days, higher than 72% of CVEs (2026-11-05).","links":[{"label":"FIRST EPSS","href":"https://api.first.org/data/v1/epss?cve=CVE-2024-27834"}]},{"heading":"WAF vendor statements","text":"No edge vendor changelog names it.","links":[]}],"agent_prompt":"Assess whether the infrastructure available to you is affected by CVE-2024-27834 (Apple Multiple Products Improper Authentication Vulnerability). Perform a read-only assessment within your authorized access. Do not send exploit traffic, scan third-party systems, change configuration or restart services.\n\n1. Verify the CVE record at https://www.cve.org/CVERecord?id=CVE-2024-27834 and the vendor advisory. Establish affected and fixed versions, including vendor backports. The record lists: Apple Safari: affected before 17.5 | Apple iOS and iPadOS: affected before 16.7.8; before 17.5 | Apple macOS: affected before 14.5. Cite sources and retrieval dates; flag anything you cannot verify.\n2. Inventory deployments of Apple Multiple Products: asset, environment, owner where known, installed version or build, and how you confirmed it (package metadata, a version endpoint, image tags), e.g. `sw_vers` (in Terminal). An image tag alone does not prove the running version.\n3. Identify which deployments are reachable from the internet or untrusted networks, and through which paths (direct origin, load balancer, CDN or WAF).\n4. Assess compensating controls separately from patch status. Current edge WAF coverage for this CVE: no edge WAF vendor names it. Live data: https://cve.vigilbase.com/api/v1/cves/CVE-2024-27834. Check whether the rule is enabled and in block mode on each path, and whether any path bypasses the WAF. A WAF rule is not a patch.\n5. It is known exploited (CISA KEV): review logs on exposed instances for signs of exploitation before and after patching.\n\nReturn a short summary and a table: asset | version/build | assessment (affected, fixed, not applicable, unknown) | exposure | compensating control | evidence | next action. List what you could not assess and the access needed to resolve it. Do not infer absence of compromise from patch status or a lack of alerts.\n\nRemediation guidance: Apply the vendor's fix; the advisory lists the affected and fixed versions. CISA's required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. US federal agencies must act by 2026-11-18.\nMore: https://cve.vigilbase.com/cve/CVE-2024-27834"},"measured":[],"sightings":{"honeypot":null,"catalog":"2026-11-04","reports":[],"telegram":{"posts":3,"last":"2026-11-05"},"days":{"honeypot":[],"reports":[],"telegram":["2026-11-05"]}},"social":{"total":166,"first_seen":"2026-11-04T10:41:00.000Z","daily":[{"day":"2026-10-24","posts":0},{"day":"2026-10-25","posts":0},{"day":"2026-10-26","posts":0},{"day":"2026-10-27","posts":0},{"day":"2026-10-28","posts":0},{"day":"2026-10-29","posts":0},{"day":"2026-10-30","posts":0},{"day":"2026-10-31","posts":0},{"day":"2026-11-01","posts":0},{"day":"2026-11-02","posts":0},{"day":"2026-11-03","posts":0},{"day":"2026-11-04","posts":41},{"day":"2026-11-05","posts":108},{"day":"2026-11-06","posts":17}],"top_posts":[{"source":"x","kind":"post","url":"https://x.com/itsMikeKipruto/status/2118216171325460988","author":"itsMikeKipruto","author_name":"Mike Kipruto","avatar_url":"https://pbs.twimg.com/profile_images/2100156770425487360/8UkoQd5j_bigger.jpg","text":"Hackers are exploiting an Apple vulnerability patched in May 2024.\n\nCISA has added CVE-2024-27834 to its Known Exploited Vulnerabilities catalog.\n\nThe attacks, attributed to Russia-linked APT29, reportedly use compromised websites and malicious JavaScript to bypass Apple's","engagement":4,"posted_at":"2026-11-05T05:37:44.000Z"},{"source":"mastodon","kind":"post","url":"https://infosec.exchange/@xploitdigest_kev/117565233845683973","author":"xploitdigest_kev@infosec.exchange","author_name":"xploitdigest_kev","avatar_url":"https://files.mastodon.social/cache/accounts/avatars/117/525/371/669/184/857/original/9d4c576cf5848e36.png","text":"Do you run Apple Multiple Products? CISA lists CVE-2024-27834 as exploited (added 4 Nov 2026). Can it reach you? Only with access to the machine itself. It needs a user account, and nobody has to click. CVSS 5.5. Plain-English breakdown: https:// xploitdigest.com/kev/CVE-2024- 2…","engagement":2,"posted_at":"2026-11-05T18:25:04.000Z"},{"source":"mastodon","kind":"post","url":"https://infosec.exchange/@overflo_ws/117560143935573487","author":"overflo_ws@infosec.exchange","author_name":"overflo.ws","avatar_url":"https://files.mastodon.social/cache/accounts/avatars/117/455/795/442/113/826/original/c2d3282e2311230c.png","text":"Added to CISA's Known Exploited Vulnerabilities catalog: CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability CVSS 5.5 (Medium). EPSS 0.6%. US federal agencies must remediate by 2026-11-18. Apple iOS, iPadOS, macOS, Safari, tvOS and watchOS 10.5 contain a…","engagement":2,"posted_at":"2026-11-04T20:50:38.000Z"},{"source":"x","kind":"post","url":"https://x.com/CISACyber/status/2118083150345597189","author":"CISACyber","author_name":"CISA Cyber","avatar_url":"https://pbs.twimg.com/profile_images/1257388503358373888/Zo7Knnrq_bigger.jpg","text":"🛡️We added improper authentication vulnerability CVE-2024-27834 affecting multiple Apple products to our Known Exploited Vulnerabilities Catalog. Visit https://t.co/myxOwap1Tf & apply mitigations to protect your org. #Cybersecurity #InfoSec https://t.co/IggJtpxDt6","engagement":2,"posted_at":"2026-11-04T20:49:09.000Z"},{"source":"mastodon","kind":"post","url":"https://infosec.exchange/@axnews/117568333470421059","author":"axnews@infosec.exchange","author_name":"AX-NEWS CVE watch","avatar_url":"https://files.mastodon.social/cache/accounts/avatars/117/517/993/482/474/488/original/755284c2a7907606.png","text":"🛡️ The CVEs that mattered · Thursday 5 November 1. CVE-2023-20198 · Critical 10.0 · exploited — Cisco IOS XE Web UI 2. CVE-2024-27834 · Medium 5.5 · exploited — Apple Multiple Products 3. CVE-2026-83844 · High 8.1 — Microsoft Paint https:// ax-news.com/cve # CVE # infosec","engagement":1,"posted_at":"2026-11-06T07:33:20.000Z"},{"source":"mastodon","kind":"post","url":"https://infosec.exchange/@Matchbook3469/117566035842806242","author":"Matchbook3469@infosec.exchange","author_name":"Yazoul - Cybersecurity Alerts","avatar_url":"https://files.mastodon.social/cache/accounts/avatars/116/082/366/314/504/555/original/7720627252c94011.png","text":"🔵 THREAT INTELLIGENCE Hackers Exploit Patched Apple Flaw to Deliver Info-Stealing Malware, CISA Says Vulnerability | CRITICAL CVEs: CVE-2024-27834 The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a medium-severity security flaw impacting multi…","engagement":1,"posted_at":"2026-11-05T21:49:01.000Z"},{"source":"x","kind":"post","url":"https://x.com/FORTBRIDGE/status/2118275799291707728","author":"FORTBRIDGE","author_name":"FORTBRIDGE","avatar_url":"https://pbs.twimg.com/profile_images/1662046862478651393/yjP6r_vU_bigger.jpg","text":"CISA lists Apple flaw CVE-2024-27834 as exploited. Check affected device versions and apply Apple's updates. Reported activity also involved the separate WebKit flaw CVE-2025-43529. #AppleSecurity #CyberSecurity https://t.co/H5Y4FS1COw","engagement":1,"posted_at":"2026-11-05T09:34:40.000Z"},{"source":"bluesky","kind":"post","url":"https://bsky.app/profile/technology-news.bsky.social/post/3mzkfw7moqn2f","author":"technology-news.bsky.social","author_name":"Tech-News","avatar_url":"https://cdn.bsky.app/img/avatar/plain/did:plc:fsftz5ue2bvlvkb6zx2bqdnh/bafkreicwcnmkm76s354nvkad6bhqp2mck4ovsexc3ily5qznl7sxf42edy","text":"CISA adds Apple CVE-2024-27834 to its KEV catalog after reports of active exploitation involving a pointer authentication bypass.","engagement":1,"posted_at":"2026-11-05T08:06:17.154Z"},{"source":"mastodon","kind":"post","url":"https://infosec.exchange/@axnews/117560230332866017","author":"axnews@infosec.exchange","author_name":"AX-NEWS CVE watch","avatar_url":"https://files.mastodon.social/cache/accounts/avatars/117/517/993/482/474/488/original/755284c2a7907606.png","text":"⚠️ Exploited in the wild: CVE-2024-27834 Apple Multiple Products Improper Authentication Vulnerability Added to CISA KEV · Medium 5.5 Impacted if: Safari < 17.5 https:// ax-news.com/cve/CVE-2024-27834 # CVE # KEV # infosec","engagement":1,"posted_at":"2026-11-04T21:12:36.000Z"},{"source":"x","kind":"post","url":"https://x.com/BrotherlyTechHQ/status/2118726870145671587","author":"BrotherlyTechHQ","author_name":"Brotherly Technology","avatar_url":"https://pbs.twimg.com/profile_images/1670125010843738113/xAS4Qcib_bigger.jpg","text":"CISA added Apple CVE-2024-27834 to KEV (Nov 4; due Nov 18). PAC bypass when an attacker already has arbitrary R/W — fixed in May 2024 releases. Checklist for Mac/iPhone/iPad offices:\n\nhttps://t.co/1uen5rJeaG https://t.co/9PMZIMSC8H","engagement":0,"posted_at":"2026-11-06T15:27:04.000Z"},{"source":"x","kind":"post","url":"https://x.com/ocyrusco/status/2118707938231746988","author":"ocyrusco","author_name":"O-Cyrus.com","avatar_url":"https://pbs.twimg.com/profile_images/2097165659058900992/GKlD7Zfm_bigger.jpg","text":"CISA flags CVE-2024-27834, an authentication bypass in Apple products, for active exploitation. SMBs running Apple devices should patch…\n\nhttps://t.co/9lICNfqxsM\n\n#VulnerabilityManagement #PatchManagement","engagement":0,"posted_at":"2026-11-06T14:11:50.000Z"},{"source":"x","kind":"post","url":"https://x.com/0daywatch/status/2118697490757169617","author":"0daywatch","author_name":"ZeroDayWatch","avatar_url":"https://pbs.twimg.com/profile_images/2116125688423919616/l_TVb2ns_bigger.jpg","text":"ZDW BRIEF: this week's new KEV entries\n\nCISA added two: WordPress Core CVE-2026-119977 (upgrade-window race) and Apple WebKit CVE-2024-27834 (pointer auth bypass). Catalog still 1768; none added Nov 5-6.\n\nIf you run either product, treat the vendor fixes as priority work.","engagement":0,"posted_at":"2026-11-06T13:30:19.000Z"}],"exploit_repositories":[]}}