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CVE-2008-4210

23
FAUCET Score

CVE-2008-4210 describes a local privilege escalation vulnerability in the Linux kernel before version 2.6.22, specifically within the fs/open.c file. This flaw allows local users to gain the privileges of a different group by exploiting improper stripping of setuid/setgid bits during file writes, potentially leading to sensitive information disclosure or other impacts. The vulnerability has a CVSS score of 4.6 (Medium), indicating a low attack complexity and requiring local access, with potential for partial confidentiality, integrity, and availability impact. While not listed in CISA's KEV catalog and showing no active exploitation or significant community discussion, public exploit code (EDB-6851) exists, demonstrating its theoretical exploitability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.21.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.2.27CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.2.27:*:*:*:*:*:*:*
2.4.36CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36:*:*:*:*:*:*:*
2.4.36.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36.1:*:*:*:*:*:*:*
2.4.36.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.14%
Probability of exploitation in next 30 days
EPSS Percentile
80.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-6851 · Oct 27, 2008
This CVE's current EPSS score of 0.0214 is in the 97th percentile among its peer group of 3,052 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 (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: kernel-0:2.4.18-e.67
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: kernel-0:2.4.9-e.74
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: kernel-0:2.4.21-58.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-78.0.8.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-92.1.18.el5
View patch

Vendor Advisories (1)

redhatCVE-2008-4210Important

kernel: open() call allows setgid bit when user is not in new file's group

May 2, 2007

References

bugzilla.kernel.org / show_bug.cgi
git.kernel.org
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.22
lists.opensuse.org / opensuse-security-announce/2008-10/msg00007.html
lists.opensuse.org / opensuse-security-announce/2008-11/msg00001.html
lists.opensuse.org / opensuse-security-announce/2008-12/msg00000.html
lists.opensuse.org / opensuse-security-announce/2008-12/msg00001.html
rhn.redhat.com / errata/RHSA-2008-0972.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/32237
secunia.com / advisories/32344
secunia.com / advisories/32356
secunia.com / advisories/32485
secunia.com / advisories/32759
secunia.com / advisories/32799
secunia.com / advisories/32918
secunia.com / advisories/33201
secunia.com / advisories/33280
exchange.xforce.ibmcloud.com / vulnerabilities/45539
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6386
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9511
debian.org / security/2008/dsa-1653
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.22
mandriva.com / security/advisories
openwall.com / lists/oss-security/2008/09/24/5
openwall.com / lists/oss-security/2008/09/24/8
redhat.com / support/errata/RHSA-2008-0787.html
redhat.com / support/errata/RHSA-2008-0957.html
redhat.com / support/errata/RHSA-2008-0973.html
securityfocus.com / bid/31368
Exploit
ubuntu.com / usn/usn-679-1