7.5
CVE-2026-33337
- EPSS 0.54%
- Veröffentlicht 17.04.2026 18:48:47
- Zuletzt bearbeitet 27.04.2026 14:26:16
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
Firebird has a buffer overflow when parsing corrupted slice packets
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Firebirdsql ≫ Firebird Version >= 3.0.0 < 3.0.14
Firebirdsql ≫ Firebird Version >= 4.0.0 < 4.0.7
Firebirdsql ≫ Firebird Version >= 5.0.0 < 5.0.4
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Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.54% | 0.412 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| security-advisories@github.com | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
CWE-502 Deserialization of Untrusted Data
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p