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No exploitation reportedFix available

CVE-2025-24975

No exploitation reported by the sources we read.

  • Published2025-08-15
  • Fixed in5.0.2 · 4.0.6
  • WeaknessCWE-754

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Firebird is a relational database. Prior to snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609, Firebird is vulnerable if ExtConnPoolSize is not set equal to 0. If connections stored in ExtConnPool are not verified for presence and suitability of the CryptCallback interface is used when created versus what is available could result in a segfault in the server process. Encrypted databases, accessed by execute statement on external, may be accessed later by an attachment missing a key to that database. In a case when execute statement are chained, segfault may happen. Additionally, the segfault may affect unencrypted databases. This issue has been patched in snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609 and point releases 4.0.6 and 5.0.2. A workaround for this issue involves setting ExtConnPoolSize equal to 0 in firebird.conf.

Timeline

dates in UTC
  1. 2025-08-1515:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-24975?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-24975?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Firebirdsql firebird
BranchAffectedFixed in
5.0≥ 5.0.0, < 5.0.25.0.2
4.0≥ 4.0.0, < 4.0.64.0.6

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • FirebirdSQL firebird
    Affected
    • = < 6.0.0.609no fix stated
    • = < 5.0.2.1610no fix stated
    • = < 4.0.6.3183no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-08-15

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • firebird3.0Ubuntu:26.10all versions · no fixed version listed
  • firebird3.0Ubuntu:26.04:LTSall versions · no fixed version listed
  • firebird3.0Ubuntu:25.10all versions · no fixed version listedand 1 other package
  • firebird3.0Ubuntu:24.04:LTSall versions · no fixed version listed
  • firebird3.0Ubuntu:22.04:LTSall versions · no fixed version listed
  • firebird3.0Ubuntu:20.04:LTSall versions · no fixed version listed
  • firebird3.0Ubuntu:18.04:LTSall versions · no fixed version listed
  • firebird4.0Debian:14all versions · fixed in 4.0.6.3221.ds6-1

1 more package range on OSV.dev

Vendor advisories

Full record on NVD

Fix

  1. Update Firebirdsql firebird to 5.0.2 · 4.0.6
  2. Workaround from the vendor Red Hat Product Security CVE-2025-24975 · 1 productMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-08-15
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.1known since 2026-10-23
  • NVDCVSS 3.18.8read 2026-10-23
  • CNAweakness (CWE)CWE-754known since 2026-10-23
  • FIRST EPSSEPSS score0.6 %2026-11-03
  • OSVaffected packages—

Identifiers

  • EUVD-2025-25030same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • DSA-5992-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2025-08-15
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-24975?

Firebird is a relational database. Prior to snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609, Firebird is vulnerable if ExtConnPoolSize is not set equal to 0. If connections stored in ExtConnPool are not verified for presence and suitability of the CryptCallback interface is used when created versus what is available could result in a segfault in the server process. Encrypted databases, accessed by execute statement on external, may be accessed later by an attachment missing a key to that database. In a case when execute statement are chained, segfault may happen. Additionally, the segfault may affect unencrypted databases. This issue has been patched in snapshot versions 4.0.6.3183, 5.0.2.1610, and 6.0.0.609 and point releases 4.0.6 and 5.0.2. A workaround for this issue involves setting ExtConnPoolSize equal to 0 in firebird.conf.

Is CVE-2025-24975 actively exploited?

Active exploitation of CVE-2025-24975 has not been confirmed. Its EPSS score was 0.6% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-24975?

CVE-2025-24975 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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