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Fencer Vulns
medium 5.3

CVE-2025-54989 json

Firebird XDR Message Parsing NULL Pointer Dereference Denial-of-Service Vulnerability

published 2025-08-15 14 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-25032

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Firebird is a relational database. Prior to versions 3.0.13, 4.0.6, and 5.0.3, there is an XDR message parsing NULL pointer dereference denial-of-service vulnerability in Firebird. This specific flaw exists within the parsing of xdr message from client. It leads to NULL pointer dereference and DoS. This issue has been patched in versions 3.0.13, 4.0.6, and 5.0.3.

Patch / fix

  • firebirdsql firebird 3.0.13, 4.0.6, 5.0.3
  • firebird3.0 Debian 12 3.0.11.33637.ds4-2+deb12u1
  • firebird3.0 Debian 13 3.0.12.ds7-13+deb13u1
  • firebird3.0 Debian 14 3.0.13.ds7-1
  • firebird4.0 Debian 13 4.0.5.3140.ds6-17+deb13u1
  • firebird4.0 Debian 14 4.0.6.3221.ds6-1

debian advisories DEBIAN-CVE-2025-54989

  • firebird SLE Module for Package Hub 15 SP7, SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 3.0.4.33054-150200.3.3.1

suse advisories SUSE-SU-2025:02991-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-54989 updated cvss 5.3

firebirdsql: Firebird Denial-of-Service Vulnerability

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
14 mo ago

Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • FirebirdSQL firebird

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.