Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2011-3191

27
FAUCET Score

CVE-2011-3191 is an integer signedness error in the Linux kernel's CIFSFindNext function, affecting various Linux distributions including Red Hat Enterprise Linux. This flaw allows remote CIFS servers to trigger a denial of service (memory corruption) or potentially other impacts by sending an oversized length value in response to a directory read request. Rated with a CVSS score of 8.8 (HIGH), the vulnerability is network-adjacent, low complexity, and can lead to high confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0108 is in the 75th percentile among its peer group of 1,859 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-274.7.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.21.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.79.el6rt
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2011-3191Important

kernel: cifs: signedness issue in CIFSFindNext()

Aug 23, 2011

References

git.kernel.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / torvalds/linux/commit/9438fabb73eb48055b58b89fc51e0bc4db22fabd
PatchThird Party Advisory
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.1
Mailing ListPatchVendor Advisory
openwall.com / lists/oss-security/2011/08/24/2
Mailing ListPatchThird Party Advisory