{"basis":"claimed","id":"CVE-2026-24423","name":"SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability","vendorProject":"SmarterTools","product":"SmarterMail","publishedAt":"2026-01-23","cvss":{"score":9.3,"severity":"CRITICAL","version":"4.0"},"exploited":{"kevAdded":"2026-02-05","dueDate":"2026-02-26","ransomware":true},"epss":{"score":0.88177,"percentile":0.99767,"date":"2026-11-02"},"coverage":{"cloudflare":{"status":"blocks","firstOn":"2026-05-04","daysToRule":101},"aws":{"status":"none","firstOn":null,"daysToRule":null},"azure":{"status":"none","firstOn":null,"daysToRule":null},"google":{"status":"none","firstOn":null,"daysToRule":null},"fastly":{"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":"SmarterTools SmarterMail < Build 9511 Unauthenticated RCE via ConnectToHub API","description":"SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method. The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS command. This command will be executed by the vulnerable application.","cwes":["CWE-306"],"vendors":[{"vendor":"cloudflare","status":"blocks","basis":"claimed","firstOn":"2026-05-04","firstIsNew":true,"daysToRule":101,"daysAtMost":null,"freePlan":false,"claims":[{"id":"df71d615cb7f8647ffa4418d3d0685351fe1d93779b3d7946e58ea105ea4603e","cve_id":"CVE-2026-24423","vendor":"cloudflare","product":"Cloudflare Managed Ruleset","rule_id":"d86d8873310d41f2877458a91e053dce","rule_name":"SmarterMail - Remote Code Execution - CVE:CVE-2026-24423","change":"new","default_action":"Block","published_on":"2026-05-04","source_url":"https://developers.cloudflare.com/changelog/post/2026-05-04-waf-release/","source_title":"WAF Release - 2026-05-04","excerpt":"SmarterMail - Remote Code Execution - CVE:CVE-2026-24423. Previous action: Log. New action: Block. This is a new detection.","first_seen_at":"2026-11-02T21:00:15.584Z"}]},{"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":"none","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":"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":"2026-11-02T23:17:40.558Z","cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","ssvc":{"exploitation":"active","automatable":"yes","technicalImpact":"total"},"measured":[{"engineId":"owasp-crs","engineName":"OWASP Core Rule Set","engineVersion":"4.25.0","runtime":"Coraza v3.8.1","config":"paranoia level 1, anomaly threshold 5, default CRS settings","ranAt":"2026-11-02T13:02:57.000Z","verdict":"passed","templateId":"CVE-2026-24423","templatePath":"http/cves/2026/CVE-2026-24423.yaml","requests":1,"blockedRequests":0,"rules":[],"note":"","requestDetail":[{"method":"POST","path":"/api/v1/settings/sysadmin/connect-to-hub","status":200,"blocked":false,"rules":[]}]},{"engineId":"owasp-crs","engineName":"OWASP Core Rule Set","engineVersion":"4.25.0","runtime":"Coraza v3.8.1","config":"paranoia level 2, anomaly threshold 5, default CRS settings","ranAt":"2026-11-02T13:03:28.000Z","verdict":"blocked","templateId":"CVE-2026-24423","templatePath":"http/cves/2026/CVE-2026-24423.yaml","requests":1,"blockedRequests":1,"rules":["931130"],"note":"","requestDetail":[{"method":"POST","path":"/api/v1/settings/sysadmin/connect-to-hub","status":403,"blocked":true,"rules":["931130"]}]}],"social":{"total":0,"first_seen":null,"daily":[{"day":"2026-10-20","posts":0},{"day":"2026-10-21","posts":0},{"day":"2026-10-22","posts":0},{"day":"2026-10-23","posts":0},{"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}],"top_posts":[],"exploit_repositories":[]}}