VulnerabilityDeferred
CVE-2025-9640
This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability.
MEDIUM 4.3EPSS 0.43%
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability.
- CVSS 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2025-9640
- https://bugzilla.redhat.com/show_bug.cgi?id=2391698
- https://www.samba.org/samba/history/security.html
- http://www.openwall.com/lists/oss-security/2025/10/15/2
- http://www.openwall.com/lists/oss-security/2025/10/16/2
- https://lists.debian.org/debian-lts-announce/2025/11/msg00027.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.