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CVE-2025-65104

Firebird: Information leak vulnerability in firebird3 client when used with newer server

Published: Apr 17, 2026Updated: Apr 17, 2026 Sources: CVE List NVD
NVD MITRE
7.9CVSS
HIGH

Firebird is an open-source relational database management system. In versions FB3 of the client library placed incorrect data length values into XSQLDA fields when communicating with FB4 or higher servers, resulting in an information leak. This issue is fixed by upgrading to the FB4 client or higher.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:CC:LI:HA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:LAvailability
Low

Weaknesses

CWE-200

Affected Products

firebird
FirebirdSQL

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.0
github.com
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-mfpr-9886-xjhg
github.com

Timeline

Published
Apr 17, 2026
Last Updated
Apr 17, 2026

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