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Intelligence for Africa and the Gulf

AEGLIX vulnerability intelligence

CVE-2026-40342

CRITICAL · CVSS 9.9 · Analyzed

Published: 2026-04-17 · Updated: 2026-10-26 · Source: NVD

Stored catalog record

Source record retrieved 2026-10-28T10:19:13.061928+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.

Vulnerability overview

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the external engine plugin loader concatenates a user-supplied engine name into a filesystem path without filtering path separators or .. components. An authenticated user with CREATE FUNCTION privileges can use a crafted ENGINE name to load an arbitrary shared library from anywhere on the filesystem via path traversal. The library's initialization code executes immediately during loading, before Firebird validates the module, achieving code execution as the server's OS account. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Patch review priority

Critical technical severity

  • CVSS is at least 9.0; exploitation is not established by severity alone.

FIRST EPSS: 0.69% · percentile 52.7 · score date 2026-10-27.

EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗

Severity and scoring

CVSS score
9.9 · CRITICAL
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-22, CWE-427, CWE-73, CWE-94

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

  • cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*

    Before (exclusive): 3.0.14

  • cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*

    From (inclusive): 4.0.0

    Before (exclusive): 4.0.7

  • cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*

    From (inclusive): 5.0.0

    Before (exclusive): 5.0.4

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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