CVE-2026-28212: CWE-476: NULL Pointer Dereference in FirebirdSQL firebird
Firebird is an open-source relational database management system. In versions prior to 6.0.0, 5.0.4, 4.0.7 and 3.0.14, when processing an op_slice network packet, the server passes an unprepared structure containing a null pointer to the SDL_info() function, resulting in a null pointer dereference and server crash. An unauthenticated attacker can trigger this by sending a crafted packet to the server port. This issue has been fixed in versions 6.0.0, 5.0.4, 4.0.7 and 3.0.14.
AI Analysis
Technical Summary
FirebirdSQL firebird contains a NULL pointer dereference vulnerability (CWE-476) in versions prior to 3.0.14, 4.0.7, 5.0.4, and 6.0.0. The vulnerability occurs during processing of an op_slice network packet, where an unprepared structure with a null pointer is passed to the SDL_info() function, resulting in a server crash. An unauthenticated attacker can exploit this by sending a specially crafted packet to the server port, causing denial of service. The vulnerability has been addressed in the specified fixed versions.
Potential Impact
Successful exploitation results in a denial of service due to server crash caused by NULL pointer dereference. There is no impact on confidentiality or integrity. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
Upgrade FirebirdSQL firebird to version 3.0.14, 4.0.7, 5.0.4, or 6.0.0 or later where this issue is fixed. Patch status is confirmed by the vendor's versioning. No other mitigation or workaround is indicated. Since this is not a cloud service, remediation depends on applying the official fixed versions.
CVE-2026-28212: CWE-476: NULL Pointer Dereference in FirebirdSQL firebird
Description
Firebird is an open-source relational database management system. In versions prior to 6.0.0, 5.0.4, 4.0.7 and 3.0.14, when processing an op_slice network packet, the server passes an unprepared structure containing a null pointer to the SDL_info() function, resulting in a null pointer dereference and server crash. An unauthenticated attacker can trigger this by sending a crafted packet to the server port. This issue has been fixed in versions 6.0.0, 5.0.4, 4.0.7 and 3.0.14.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FirebirdSQL firebird contains a NULL pointer dereference vulnerability (CWE-476) in versions prior to 3.0.14, 4.0.7, 5.0.4, and 6.0.0. The vulnerability occurs during processing of an op_slice network packet, where an unprepared structure with a null pointer is passed to the SDL_info() function, resulting in a server crash. An unauthenticated attacker can exploit this by sending a specially crafted packet to the server port, causing denial of service. The vulnerability has been addressed in the specified fixed versions.
Potential Impact
Successful exploitation results in a denial of service due to server crash caused by NULL pointer dereference. There is no impact on confidentiality or integrity. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
Upgrade FirebirdSQL firebird to version 3.0.14, 4.0.7, 5.0.4, or 6.0.0 or later where this issue is fixed. Patch status is confirmed by the vendor's versioning. No other mitigation or workaround is indicated. Since this is not a cloud service, remediation depends on applying the official fixed versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-25T15:28:40.649Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e27e0fbdfbbecc5978c953
Added to database: 4/17/2026, 6:38:07 PM
Last enriched: 4/25/2026, 2:59:14 AM
Last updated: 6/2/2026, 4:44:25 AM
Views: 89
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