# CVE-2026-28212: firebird3.0: Firebird is an open-source relational database management system

CVE-2026-28212 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-28212, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-28212
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0050
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 17, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firebird3.0 Debian 14 | 3.0.14.ds7-1 | [DEBIAN-CVE-2026-28212](https://patchblox.com/security/data/fix/linux/debian-cve-2026-28212.md) | May 15, 2026 |
| Linux | firebird4.0 Debian 14 | 4.0.7.3271.ds6-1 | [DEBIAN-CVE-2026-28212](https://patchblox.com/security/data/fix/linux/debian-cve-2026-28212.md) | May 15, 2026 |

---

Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.