CVE-2026-28214

N/A

Description

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the ClumpletReader::getClumpletSize() function can overflow the totalLength value when parsing a Wide type clumplet, causing an infinite loop. An authenticated user with INSERT privileges on any table can exploit this via a crafted Batch Parameter Block to cause a denial of service against the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

CVE Details

CVSS v3.1 ScoreN/A

Published4/17/2026

Last Modified4/17/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-190CWE-835

References

https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7cq5-994r-jhrf(security-advisories@github.com)

IOC Correlations

No correlations recorded

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