# CVE-2025-3277: SQLite sqlite

- Exploited (CISA KEV): no
- Published: 2025-04-14
- CVSS: 6.9 MEDIUM (v4.0)
- EPSS: 1.3% (69th percentile)
- CWE: CWE-122

An integer overflow can be triggered in SQLite’s `concat_ws()` function. The resulting, truncated integer is then used to allocate a buffer. When SQLite then writes the resulting string to the buffer, it uses the original, untruncated size and thus a wild Heap Buffer overflow of size ~4GB can be triggered. This can result in arbitrary code execution.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-06-30 | 77 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2025-06-30 · new · rule 200011101
  > Added: signature 200011101 "SQLite concat_ws Integer Overflow (Parameter)" (Buffer Overflow, risk Low), systems: SQLite. References: CVE-2025-3277, CVE-2025-29087.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-06-30 · new · rule 200011102
  > Added: signature 200011102 "SQLite concat_ws Integer Overflow (Header)" (Buffer Overflow, risk Low), systems: SQLite. References: CVE-2025-3277, CVE-2025-29087.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-06-30 · new · rule 200011103
  > Added: signature 200011103 "SQLite concat_ws Integer Overflow (URI)" (Buffer Overflow, risk Low), systems: SQLite. References: CVE-2025-3277, CVE-2025-29087.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-3277 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-3277