VulnerabilityPublished 27 May 2025Updated 30 Oct 2026

CVE-2025-2312: cifs-utils vulnerability

Affects cifs-utilsSource GCVE Database

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Not known to be exploited · fixed in 2:6.9-1ubuntu0.3 : patch cifs-utils soon.

Data as of 31 Oct 2026, 01:51 UTC

Severity

High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Patch: Available – fixed in 2:6.9-1ubuntu0.3, 2:6.14-1ubuntu0.2, 2:7.0-2ubuntu0.1

Exploitation evidence

Disclosed: evidence found.
CVE published 27 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

usn-7536-1

What to do

Upgrade the Ubuntu cifs-utils to 2:6.9-1ubuntu0.3 (package) or 2:6.14-1ubuntu0.2 (package) or 2:7.0-2ubuntu0.1 (package).

Patches and advisories

ubuntu.com/security/notices/USN-7536-1 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu 24.04 LTScifs-utils`pkg:deb/ubuntu/cifs-utils?arch=source&distro=noble`Other threats	Affected <2:7.0-2ubuntu0.1	Fixed in 2:7.0-2ubuntu0.1
Ubuntu 22.04 LTScifs-utils`pkg:deb/ubuntu/cifs-utils?arch=source&distro=jammy`Other threats	Affected <2:6.14-1ubuntu0.2	Fixed in 2:6.14-1ubuntu0.2
Ubuntu 20.04 LTScifs-utils`pkg:deb/ubuntu/cifs-utils?arch=source&distro=focal`Other threats	Affected <2:6.9-1ubuntu0.3	Fixed in 2:6.9-1ubuntu0.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available and users should update cifs-utils to the following package versions or later: 2:6.9-1ubuntu0.3 for Ubuntu 20.04 LTS, 2:6.14-1ubuntu0.2 for Ubuntu 22.04 LTS, and 2:7.0-2ubuntu0.1 for Ubuntu 24.04 LTS and 24.10. Applying a standard system update will install the necessary patches.

Description

A vulnerability in cifs-utils was discovered where it incorrectly handled namespaces when obtaining Kerberos credentials. This flaw could allow an attacker to obtain sensitive information. The issue affects multiple Ubuntu releases and has been addressed in updated package versions. Users are advised to update to the fixed versions to mitigate the risk.

Impact

An attacker exploiting this vulnerability could potentially obtain sensitive information due to incorrect namespace handling in cifs-utils when acquiring Kerberos credentials. No public exploits or in-the-wild exploitation are currently known. The impact is limited to information disclosure.

Summary

CVE-2025-2312 is a vulnerability in cifs-utils caused by improper handling of namespaces during the process of obtaining Kerberos credentials. This flaw may enable an attacker to access sensitive information. The vulnerability affects several Ubuntu package versions prior to the fixed releases. Canonical has released patches for Ubuntu 20.04 LTS, 22.04 LTS, 24.04 LTS, and 24.10 to correct this issue.

References

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