CVE-2025-2312

MEDIUM

5.9

CVSS v3

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.

CWE-488

How to fix

Remediation Available

cifs-utilsDebian

Fixed in:2:7.2-1CVE-2025-2312

cifs-utilsUbuntu

Fixed in:2:6.9-1ubuntu0.3USN-7536-1

Fixed in:2:6.14-1ubuntu0.2USN-7536-1

Fixed in:2:7.0-2ubuntu0.1USN-7536-1

linuxUbuntu

Fixed in:5.4.0-218.238USN-7585-1

Fixed in:5.15.0-142.152USN-7591-1

Fixed in:6.8.0-62.65USN-7595-1

linux-awsUbuntu

Fixed in:5.4.0-1147.157USN-7585-1

Fixed in:5.15.0-1086.93USN-7591-4

Fixed in:6.8.0-1030.32USN-7595-1

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1086.93~20.04.1USN-7592-1

linux-aws-5.4Ubuntu

Fixed in:5.4.0-1147.157~18.04.1USN-7585-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7595-1

linux-aws-fipsUbuntu

Fixed in:5.4.0-1147.157+fips1USN-7585-2

Fixed in:5.15.0-1086.93+fips1USN-7591-2

linux-azureUbuntu

Fixed in:5.4.0-1152.159USN-7585-1

Fixed in:6.8.0-1025.30USN-7384-1

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1152.159~18.04.1USN-7585-4

linux-azure-6.11Ubuntu

Fixed in:6.11.0-1018.18~24.04.1USN-7628-1

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1025.30~22.04.1USN-7384-2

linux-azure-fipsUbuntu

Fixed in:5.4.0-1153.160+fips1USN-7585-3

linux-azure-nvidiaUbuntu

Fixed in:6.8.0-1014.15USN-7468-1

linux-bluefieldUbuntu

Fixed in:5.4.0-1106.113USN-7585-6

linux-fipsUbuntu

Fixed in:5.4.0-1121.131USN-7585-3

Fixed in:5.15.0-142.152+fips1USN-7591-2

linux-gcpUbuntu

Fixed in:5.4.0-1150.159USN-7585-1

Fixed in:5.15.0-1085.94USN-7591-1

Fixed in:6.8.0-1031.33USN-7595-5

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1085.94~20.04.1USN-7592-1

linux-gcp-5.4Ubuntu

Fixed in:5.4.0-1150.159~18.04.1USN-7585-1

linux-gcp-6.11Ubuntu

Fixed in:6.11.0-1016.16~24.04.1USN-7605-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

linux-gcp-fipsUbuntu

Fixed in:5.4.0-1150.159+fips1USN-7585-2

Fixed in:5.15.0-1085.94+fips1USN-7591-2

linux-gkeUbuntu

Fixed in:5.15.0-1083.89USN-7591-1

Fixed in:6.8.0-1026.30USN-7595-1

linux-gkeopUbuntu

Fixed in:5.15.0-1068.76USN-7591-1

Fixed in:6.8.0-1013.15USN-7595-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-142.152~20.04.1USN-7593-1

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-218.238~18.04.1USN-7585-5

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-28.28~24.04.1USN-7605-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-ibmUbuntu

Fixed in:5.4.0-1093.98USN-7585-1

Fixed in:5.15.0-1078.81USN-7591-1

Fixed in:6.8.0-1027.27USN-7595-1

linux-ibm-5.15Ubuntu

Fixed in:5.15.0-1078.81~20.04.1USN-7592-1

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Other references2

Related Vulnerabilities

Other CWE-488 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-38367	High	8.2	11%	-	Fix
CVE-2024-6162	High	7.5	1.7%	-	Fix
CVE-2025-1247	High	8.3	0.8%	-	-
CVE-2024-27935	High	7.2	0.7%	-	Fix
CVE-2024-27455	Critical	9.1	0.6%	-	-
CVE-2025-47928	Critical	9.1	0.6%	-	-

Common questions

How do I fix CVE-2025-2312?

Published advisories record a fix for 249 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-2312 being actively exploited?

Not that we know of. CVE-2025-2312 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.21% is the estimated probability that it will be exploited in the next 30 days. That is higher than 11% of all scored CVEs.

How severe is CVE-2025-2312?

CVE-2025-2312 has a CVSS v3 base score of 5.9, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-2312 affect?

Published advisories record a fix for cifs-utils (Debian), cifs-utils (Ubuntu), linux (Ubuntu), linux-aws (Ubuntu), and 245 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-27.