CVE-2014-7975

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

October 13, 2014

Last Modified

May 6, 2026

Advisory Details (7)

Auto-updated May 7, 2026
No patch confirmed yet.
generic
http://www.securityfocus.com/bid/70314
generic

oss-security - CVE-2014-7975: 0-day umount denial of service

http://www.openwall.com/lists/oss-security/2014/10/08/22
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62634
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62633
generic

About Secunia Research | Flexera

http://secunia.com/advisories/61145
generic

About Secunia Research | Flexera

http://secunia.com/advisories/60174
generic

Merge branch 'CVE-2014-7975' of git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux - kernel/git/torvalds/linux.git - Linux kernel source tree

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5

Vendor Advisories for CVE-2014-7975(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.32-372-ec2 (2.6.32-372.89) @ lucid2026-05-28ubuntu
ubuntulinux-image-3.13.0-40-generic (3.13.0-40.69~precise1) @ precise2026-05-28ubuntu
ubuntulinux-image-3.16.0-25-powerpc64-emb (3.16.0-25.33) @ utopic2026-05-28ubuntu
ubuntulinux-image-3.2.0-72-powerpc64-smp (3.2.0-72.107) @ precise2026-05-28ubuntu
ubuntulinux-image-extra-3.13.0-40-generic (3.13.0-40.69) @ trusty2026-05-28ubuntu
ubuntulinux-image-3.2.0-1456-omap4 (3.2.0-1456.76) @ precise2026-05-28ubuntu
ubuntulinux-image-2.6.32-68-lpia (2.6.32-68.135) @ lucid2026-05-28ubuntu
redhatkernel-rt-0:3.10.0-693.rt56.617.el72017-08-01redhat
redhatkernel-0:3.10.0-693.el72017-08-01redhat

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—3.16.7-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—3.16.7-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—3.16.7-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—3.16.7-1—

Additional Vendor Advisories

(7)

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.

Data Freshness Timeline

(refreshed 6× in last 7d / 22× 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 144 total refreshes for this CVE.

  1. 2026-09-18 19:21 UTCEPSS rescore
  2. 2026-09-17 19:21 UTCEPSS rescore
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  20. 2026-08-23 06:23 UTCOSV refresh
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  1. 2026-08-16 02:09 UTCEPSS rescore
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  5. 2026-08-08 16:31 UTCEPSS rescore
  6. 2026-08-07 16:21 UTCEPSS rescore
  7. 2026-08-07 08:57 UTCOSV refresh
  8. 2026-08-06 13:42 UTCEPSS rescore
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  19. 2026-07-23 01:14 UTCEG score recompute
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  21. 2026-07-22 21:56 UTCEG score recompute
  22. 2026-07-22 14:04 UTCEPSS rescore
  23. 2026-07-22 01:48 UTCOSV refresh
  24. 2026-07-21 15:21 UTCEPSS rescore
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  26. 2026-07-20 17:03 UTCEPSS rescore
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  45. 2026-07-05 02:26 UTCEPSS rescore
  46. 2026-07-04 20:26 UTCOSV refresh
  47. 2026-07-04 06:27 UTCEPSS rescore
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  75. 2026-06-16 08:09 UTCOSV refresh

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2014-7975?
CVE-2014-7975 is a medium vulnerability published on October 13, 2014. The doumount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAPSYSADMIN capability for doremountsb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system…
When was CVE-2014-7975 disclosed?
CVE-2014-7975 was first published in the National Vulnerability Database on October 13, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-7975 actively exploited?
CVE-2014-7975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.8% of all scored CVEs.
What is the CVSS score of CVE-2014-7975?
CVE-2014-7975 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2014-7975?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-7975, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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