CVE-2011-3191

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

A fix is available — apply it.

Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
61.3%
KEV
Not listed

Published

May 24, 2012

Last Modified

April 29, 2026

Advisory Details (4)

Auto-updated May 2, 2026
Patch available. Sources: redhat.
generic

cifs: fix possible memory corruption in CIFSFindNext · torvalds/linux@9438fab · GitHub

https://github.com/torvalds/linux/commit/9438fabb73eb48055b58b89fc51e0bc4db22fabd
redhat Patch Available

732869 – (CVE-2011-3191) CVE-2011-3191 kernel: cifs: signedness issue in CIFSFindNext()

Affected: Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. It has been addressed in Red Hat Enterprise Linux 5, 6 and Red H

https://bugzilla.redhat.com/show_bug.cgi?id=732869
generic

oss-security - Re: CVE request: kernel: cifs: singedness issue in CIFSFindNext()

http://www.openwall.com/lists/oss-security/2011/08/24/2
generic
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

Vendor Advisories for CVE-2011-3191(1)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.35-903-omap4 (2.6.35-903.25) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.32-219-dove (2.6.32-219.37) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.31-611-imx51 (2.6.31-611.29) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.35-30-virtual (2.6.35-30.60~lucid1) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.35-30-powerpc (2.6.35-30.60) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.32-419-dove (2.6.32-419.37) @ maverick2026-05-29ubuntu
ubuntulinux-image-2.6.38-1209-omap4 (2.6.38-1209.16) @ natty2026-05-29ubuntu
ubuntulinux-image-2.6.38-12-generic (2.6.38-12.51) @ natty2026-05-29ubuntu
ubuntulinux-image-2.6.38-12-generic (2.6.38-12.51~lucid1) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.24-29-lpiacompat (2.6.24-29.94) @ hardy2026-05-29ubuntu
ubuntulinux-image-2.6.32-35-386 (2.6.32-35.78) @ lucid2026-05-29ubuntu
ubuntulinux-image-2.6.32-319-ec2 (2.6.32-319.39) @ lucid2026-05-29ubuntu
redhatkernel-rt-0:2.6.33.9-rt31.79.el6rt2012-01-10redhat
redhatkernel-0:2.6.32-131.21.1.el62011-11-22redhat
redhatkernel-0:2.6.18-274.7.1.el52011-10-20redhat

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

(14)

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 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.

  1. 2026-07-06 16:23 UTCEPSS rescore
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  40. 2026-05-29 04:29 UTCVendor advisory
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2011-3191?
CVE-2011-3191 is a high vulnerability published on May 24, 2012. Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.
When was CVE-2011-3191 disclosed?
CVE-2011-3191 was first published in the National Vulnerability Database on May 24, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-3191 actively exploited?
CVE-2011-3191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 61.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2011-3191?
CVE-2011-3191 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2011-3191?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3191, 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.

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