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TI-2025-34695 Aliases CVE-2025-54989

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

Priority LOW 34CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0068 52nd percentileScored 2026-11-07
Fix Fixed firebird (FirebirdSQL): 3.0.13, 4.0.6, 5.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FirebirdSQLfirebirdbefore 3.0.13; before 4.0.6; before 5.0.33.0.13, 4.0.6, 5.0.3Patch availableCNA
  • firebird VendorFirebirdSQL Affected before 3.0.13; before 4.0.6; before 5.0.3 Fixed in 3.0.13, 4.0.6, 5.0.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*before 3.0.13; 4.0.0 to before 4.0.6; 5.0.0 to before 5.0.3VulnerableFirebirdSQL
  • cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:* Versions before 3.0.13; 4.0.0 to before 4.0.6; 5.0.0 to before 5.0.3 Vulnerable ·FirebirdSQL

Remediation

  • Fix · CNA firebird (FirebirdSQL) Fixed in 3.0.13, 4.0.6, 5.0.3

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-54989
  2. 2026-11-05 EPSS moved to the 50th–90th percentile

References

Patch 1

Advisory 1

Other 1

  • TI-2026-22559 Firebird Null Pointer Dereference via CryptCallback causes DOS CVSS 3.1HIGH 8.2
  • TI-2026-22234 Firebird has Pre-Auth DOS when Processing Out of Order CNCT_specific_data Segments CVSS 3.1HIGH 8.2
  • TI-2026-27368 Firebird: DoS via malicious slice descriptor in slice packet CVSS 3.1HIGH 7.5
  • TI-2026-26527 Firebird: DoS via `op_response` packet from client CVSS 3.1HIGH 7.5
  • TI-2026-25747 Firebird has a buffer overflow when parsing corrupted slice packets CVSS 3.1HIGH 7.5
  • TI-2026-22547 Firebird has potential server crash via null pointer dereference when processing op_slice packet CVSS 3.1HIGH 7.5
See all 45 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences