What is CVE-2010-4527?

CVE-2010-4527 is a vulnerability in Linux Kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2011-01-13.

Is CVE-2010-4527 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Linux Kernel

CVE-2010-4527

The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel before 2.6.37 incorrectly expects that a certain name field ends with a '\0' character, which allows local users to conduct buffer overflow attacks and gain privileges, or possibly obtain sensitive information from kernel memory, via a SOUND_MIXER_SETLEVELS ioctl call.

Vulnerability class: Buffer Overflow

Published 2011-01-13 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.005 (40.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

mergebase/usn2json

References

openwall.com/lists/oss-security/2010/12/31/4 (mailing-list, Mailing List, Third Party Advisory)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
xorl.wordpress.com/2011/01/09/cve-2010-4527-linux-kernel-oss-sound-card-driver-… (Exploit, Third Party Advisory)
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37 (Broken Link)
www.securityfocus.com/bid/45629 (VDB Entry, Third Party Advisory, vdb-entry)
openwall.com/lists/oss-security/2010/12/31/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
secunia.com/advisories/42765 (Third Party Advisory, third-party-advisory)
www.vupen.com/english/advisories/2011/0375 (Third Party Advisory, vdb-entry)
lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html (vendor-advisory, Mailing List, Third Party Advisory)
git.kernel.org/

Frequently asked questions

What is CVE-2010-4527?: CVE-2010-4527 is a vulnerability in Linux Kernel, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2011-01-13.
Is CVE-2010-4527 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.