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.
CVE-2025-2312
Score 5.9 from GitHub Security Advisory published 2025-03-25. NVD baseline CVSS 5.9; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.9
- EG Score
- 5.9(medium)
- EG Risk
- —
- EPSS
- 4.6%
- KEV
- Not listed
Published
March 25, 2025
Last Modified
April 15, 2026
References (2)
- 74b3a70d-cca6-4d34-9789-e83b222ae3behttps://git.samba.org/?p=cifs-utils.git;a=commit;h=89b679228cc1be9739d54203d28289b03352c174
- 74b3a70d-cca6-4d34-9789-e83b222ae3behttps://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb?id=db363b0a1d9e6b9dc556296f1b1007aeb496a8cf
Vendor Advisories for CVE-2025-2312(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(30)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(24)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- UbuntuUSN-7384-1MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-7384-2MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-7448-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-7468-1MEDIUM
Linux kernel (Azure, N-Series) vulnerabilities
- UbuntuUSN-7536-1MEDIUM
cifs-utils vulnerability
- UbuntuUSN-7585-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-7585-2MEDIUM
Linux kernel (FIPS) vulnerabilities
- UbuntuUSN-7585-3MEDIUM
Linux kernel (FIPS) vulnerabilities
- UbuntuUSN-7585-4MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-7585-5MEDIUM
Linux kernel (HWE) vulnerabilities
- UbuntuUSN-7585-6MEDIUM
Linux kernel (BlueField) vulnerabilities
- UbuntuUSN-7585-7MEDIUM
Linux kernel (Raspberry Pi) vulnerabilities
- UbuntuUSN-7591-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-7591-2MEDIUM
Linux kernel (FIPS) vulnerabilities
- UbuntuUSN-7591-3MEDIUM
Linux kernel (Real-time) vulnerabilities
- UbuntuUSN-7591-4MEDIUM
Linux kernel (AWS) vulnerabilities
- UbuntuUSN-7591-5MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
- UbuntuUSN-7591-6MEDIUM
Linux kernel (Raspberry Pi) vulnerabilities
- UbuntuUSN-7592-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-7593-1MEDIUM
Linux kernel (HWE) vulnerabilities
- UbuntuUSN-7595-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-7595-2MEDIUM
Linux kernel (Real-time) vulnerabilities
- UbuntuUSN-7595-3MEDIUM
Linux kernel (Raspberry Pi Real-time) vulnerabilities
- UbuntuUSN-7595-4MEDIUM
Linux kernel vulnerabilities
Data Freshness Timeline
(refreshed 10× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 121 total refreshes for this CVE.
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-10 16:23 UTCOSV refresh
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- 2026-06-21 23:55 UTCOSV refresh
- 2026-06-21 01:59 UTCEPSS rescore
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- 2026-06-03 15:09 UTCOSV refresh
- 2026-06-02 20:12 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2025-2312?
When was CVE-2025-2312 disclosed?
Is CVE-2025-2312 actively exploited?
What is the CVSS score of CVE-2025-2312?
How do I remediate CVE-2025-2312?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-2312
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