cvedb.io
CVE-2026-33337
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-17T19:16:36.223 · Last modified 2026-06-17T10:37:20.620

Summary

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when deserializing a slice packet, the xdr_datum() function does not validate that a cstring length conforms to the slice descriptor bounds, allowing a cstring longer than the allocated buffer to overflow it. An unauthenticated attacker can exploit this by sending a crafted packet to the server, potentially causing a crash or other security impact. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Affected products

firebirdsql — firebird

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.