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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-28212)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1868-1 advisory.

    This update for firebird fixes the following issues

    - CVE-2025-65104: Information leak vulnerability in firebird3 client when used with newer (>= 4) server     (bsc#1262330).
    - CVE-2026-27890: Pre-Auth DOS (bsc#1262328).
    - CVE-2026-28212: One packet DoS (bsc#1262329).
    - CVE-2026-28214: Server hangs when using specific clumplet on batch creation (bsc#1262327).
    - CVE-2026-28224: CryptCallback DOS (bsc#1262326).
    - CVE-2026-33337: Buffer overflow on parsing corrupted slice packet (bsc#1262325).
    - CVE-2026-34232: DoS via `op_response` packet from client (bsc#1262324).
    - CVE-2026-35215: DoS via malicious slice descriptor in slice packet (bsc#1262322).
    - CVE-2026-40342: Path traversal when declaring external routine (bsc#1262320).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-28212)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
477744	Echo: firebird4.0: security update to 4.0.5.3140.ds6-17+deb13u1+e1	Tenable Cloud Security	Echo Local Security Checks	Local	high
477744	Echo: firebird4.0: security update to 4.0.5.3140.ds6-17+deb13u1+e1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
315043	SUSE SLES15 Security Update : firebird (SUSE-SU-2026:1868-1)	Nessus	SuSE Local Security Checks	Local	medium
307395	Linux Distros Unpatched Vulnerability : CVE-2026-28212	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-28212

high

Tenable Plugins

high

high

medium

high