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CVE-2011-1927

18
FAUCET Score

CVE-2011-1927 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting versions before 2.6.39. This flaw stems from improper construction of ICMP_TIME_EXCEEDED packets by the ip_expire function, leading to an invalid pointer dereference when processing crafted fragmented packets. Rated with a CVSS score of 5.0 (medium), the vulnerability is remotely exploitable with low attack complexity, potentially causing system unavailability. There is no evidence of active exploitation, public exploit code, or significant community discussion 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

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.59%
Probability of exploitation in next 30 days
EPSS Percentile
83.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0259 is in the 76th percentile among its peer group of 23,705 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 (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2011-1927

CVE-2011-1927

References

ftp.osuosl.org / pub/linux/kernel/v2.6/ChangeLog-2.6.39
git.kernel.org
github.com / torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba
ExploitPatch
openwall.com / lists/oss-security/2011/05/18/2