CVE-2026-34232
highpriority · track · 0EPSS 0.005 · 40 %ileDEEURUUSEPSS · scored 2026-10-28
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (23)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1171Firebird: Mehrere SchwachstellenDeutsch2026-04-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Firebird ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/FirebirdSQL/firebird/releases/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-34232cnnvd
- https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14enisa_euvd
- https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7enisa_euvd
- https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4enisa_euvd
- https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7jq3-6j3c-5cm2enisa_euvd
- https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14Release Notesnvd
- https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7Release Notesnvd
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