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CVE-2010-2524

24
FAUCET Score

CVE-2010-2524 describes a local privilege escalation vulnerability in the Linux kernel's CIFS implementation (before version 2.6.35), specifically when CONFIG_CIFS_DFS_UPCALL is enabled. This flaw allows a local attacker to spoof DNS resolution results for CIFS mounts by manipulating the user's keyring, affecting various Linux distributions including Canonical, SUSE, and VMware. With a CVSS score of 7.8 (High), successful exploitation could lead to high confidentiality, integrity, and availability impacts, requiring low attack complexity and no user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*
6.06CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
8.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 75th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-194.11.1.el5
View patch
vmwarepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2010-2524Moderate

kernel: dns_resolver upcall security issue

Jul 22, 2010

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2010-09/msg00004.html
Mailing ListThird Party Advisory
marc.info
Mailing ListPatchThird Party Advisory
marc.info
Mailing ListPatchThird Party Advisory
marc.info
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
secunia.com / advisories/43315
Broken Link
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.35
Broken Link
mandriva.com / security/advisories
Broken Link
redhat.com / support/errata/RHSA-2010-0610.html
Broken Link
securityfocus.com / archive/1/516397/100/0/threaded
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1000-1
Third Party Advisory
vmware.com / security/advisories/VMSA-2011-0003.html
PatchThird Party Advisory