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CVE-2010-5321

18
FAUCET Score

CVE-2010-5321 is a memory leak vulnerability in the Linux kernel's videobuf subsystem, affecting versions 2.6.x through 4.x, specifically 11 drivers still using videobuf. A local attacker with /dev/video access can trigger a denial of service through excessive memory consumption via a series of mmap calls. This vulnerability has a CVSS score of 4.3 (Medium), indicating a low attack complexity and the potential for high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.0, <= 4.20.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 54th percentile among its peer group of 170 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2010-5321Low

kernel: v4l: videobuf: hotfix a bug on multiple calls to mmap()

Jul 29, 2010

References

linuxtv.org / irc/v4l/index.php
Not Applicable
bugs.debian.org / cgi-bin/bugreport.cgi
Issue TrackingMailing ListThird Party Advisory
bugzilla.kernel.org / show_bug.cgi
Issue TrackingThird Party AdvisoryVDB Entry
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2015/02/08/4
Mailing ListThird Party Advisory