CVE-2025-40778

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 49.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

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

2025-10-22 15:47Z10 MO AGO

Last updated

2026-02-26 16:57Z6 MO AGO

Reserved

2025-04-16

Assigning CNA

isc

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-349Acceptance of Extraneous Untrusted Data With Trusted DataBase
• CWE-347Improper Verification of Cryptographic SignatureBase

Data version

5.2

Document digest

4c193dd7474531bc98ff07d47ce38a8f672e0bdf11e705bf68a4b99ae0952ab8

• kb.isc.orgCVE-2025-40778https://kb.isc.org/docs/cve-2025-40778vendor-advisory
• gist.github.comhttps://gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918exploit
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/10/22/1