CVE-2025-2312: cifs-utils
Affects cifs-utilsSource GCVE Database
Not known to be exploited · CVSS 5.9 Medium · fixed in 5.4.0-1147.157~18.04.1 : update cifs-utils when convenient.
Data as of 28 Oct 2026, 11:14 UTC
- Patch
- Available – fixed in 5.4.0-1147.157~18.04.1, 5.4.0-1152.159~18.04.1, 5.4.0-1150.159~18.04.1 +88
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 25 Mar 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7384-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7384-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7448-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7468-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7536-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7592-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7593-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTScifs-utilspkg:deb/ubuntu/cifs-utils?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-nvidiapkg:deb/ubuntu/linux-azure-nvidia?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A flaw was found in cifs-utils. When trying to obtain Kerberos credentials, the cifs.upcall program from the cifs-utils package makes an upcall to the wrong namespace in containerized environments. This issue may lead to disclosing sensitive data from the host's Kerberos credentials cache.
References
- ubuntu.com/security/CVE-2025-2312 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-2312 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2352604 (opens in a new tab)
- ubuntu.com/security/notices/USN-7384-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7384-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7448-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7468-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7536-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7592-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7593-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7595-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7595-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7591-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7585-4 (opens in a new tab)