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High 7.5Published Apr 17, 2026

CVE-2026-35215Firebird is an open-source relational database management system.

Updated under an hour ago ()

Does this affect you?

It affects firebirdsql firebird. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the length of a decoded SDL descriptor from a slice packet. A zero-length descriptor is later used to calculate the number of slice items, causing a division by zero. An unauthenticated attacker can exploit this by sending a crafted slice packet to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

CVSS
7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-369
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jun 17, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
firebirdsql firebird
firebirdsql:firebird
from 3.0.0 before 3.0.14; from 4.0.0 before 4.0.7; from 5.0.0 before 5.0.4
NVD

References

  • release-notes
  • release-notes
  • release-notes
  • exploit, vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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