CVE-2026-40342

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.6% of scored records. A rank, not a probability.

NVD base score

9.9 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-17 19:22Z6 MO AGO

Last updated

2026-04-22 13:56Z6 MO AGO

Reserved

2026-04-10

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 10.0)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
• CWE-73External Control of File Name or PathBase
• CWE-94Improper Control of Generation of Code ('Code Injection')Base
• CWE-427Uncontrolled Search Path ElementBase

Data version

5.2

Document digest

8170a619188df887aca59feb2a6d7bf6cf83611a145af5979a7ace798fb0ee11

• github.comhttps://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7pxc-h3rv-r257x_refsource_CONFIRM
• github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14x_refsource_MISC
• github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7x_refsource_MISC
• github.comhttps://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4x_refsource_MISC