CVE-2025-9640

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 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

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 39.7% of scored records. A rank, not a probability.

NVD base score

4.3 (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:U/C:L/I:N/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-10-18.

Red Hat severity

Low. 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

2025-10-15 12:47Z1 YR AGO

Last updated

2026-09-01 12:08Z1 MO AGO

Reserved

2025-08-29

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

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

Weaknesses

• CWE-908Use of Uninitialized ResourceBase

Data version

5.2

Document digest

9c0113c516fc0a47fd9630b908a469ccfc0b961aad5a328b3e553d5a85906a03

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-9640vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2391698https://bugzilla.redhat.com/show_bug.cgi?id=2391698issue-trackingx_refsource_REDHAT
• www.samba.orghttps://www.samba.org/samba/history/security.html
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/10/15/2
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/10/16/2
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/11/msg00027.html