Insufficient checks in the UDF subsystem in Firebird 2.5.x before 2.5.7 and 3.0.x before…
Priority MEDIUM 44CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-862.
Summary
Insufficient checks in the UDF subsystem in Firebird 2.5.x before 2.5.7 and 3.0.x before 3.0.2 allow remote authenticated users to execute code by using a 'system' entrypoint from fbudf.so.
Why it matters now
EPSS 0.03301 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:* | 2.5.0 to before 2.5.7; 3.0.0 to before 3.0.2 | Vulnerable | FirebirdSQL |
- cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:* Versions 2.5.0 to before 2.5.7; 3.0.0 to before 3.0.2 Vulnerable ·FirebirdSQL
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2017-6369
- 2026-10-03 Alias added: GHSA-vf42-c4fw-rcm3
References
More FirebirdSQL Firebird vulnerabilities
- TI-2026-22559 Firebird Null Pointer Dereference via CryptCallback causes DOS CVSS 3.1HIGH 8.2
- TI-2026-22234 Firebird has Pre-Auth DOS when Processing Out of Order CNCT_specific_data Segments CVSS 3.1HIGH 8.2
- TI-2026-27368 Firebird: DoS via malicious slice descriptor in slice packet CVSS 3.1HIGH 7.5
- TI-2026-26527 Firebird: DoS via `op_response` packet from client CVSS 3.1HIGH 7.5
- TI-2026-25747 Firebird has a buffer overflow when parsing corrupted slice packets CVSS 3.1HIGH 7.5
- TI-2026-22547 Firebird has potential server crash via null pointer dereference when processing op_slice packet CVSS 3.1HIGH 7.5
Sources
- CVE-2017-6369 · CVE Program
- CVE-2017-6369 · NVD
- FIRST EPSS
- GHSA-vf42-c4fw-rcm3 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-6369 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences