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-2011-2496

17
FAUCET Score

CVE-2011-2496 describes an integer overflow vulnerability in the Linux kernel, specifically within the vma_to_resize function in mm/mremap.c, affecting versions prior to 2.6.39. A local attacker can exploit this flaw by crafting an mremap system call to expand a memory mapping, leading to a denial of service through a BUG_ON and system crash. The vulnerability has a CVSS score of 4.9, indicating a low attack complexity and local access requirement, with the sole impact being system availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.38.8CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.38:*:*:*:*:*:*:*
2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.38:rc1:*:*:*:*:*:*
2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.38:rc2:*:*:*:*:*:*
2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.38:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

AV:L/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.49%
Probability of exploitation in next 30 days
EPSS Percentile
39.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0049 is in the 74th percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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 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-0:2.6.32-131.17.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.7Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2011-2496Moderate

kernel: mm: avoid wrapping vm_pgoff in mremap() and stack expansions

Apr 7, 2011

References

ftp.osuosl.org / pub/linux/kernel/v2.6/ChangeLog-2.6.39
git.kernel.org
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8
ExploitPatch
openwall.com / lists/oss-security/2011/06/27/2