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CVE-2011-2480

25
FAUCET Score

CVE-2011-2480 describes an information disclosure vulnerability in the 802.11 stack affecting FreeBSD before version 8.2 and NetBSD on certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local, unprivileged user to read large portions of kernel memory. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a significant risk of sensitive information disclosure. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netbsd:netbsd:-:*:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 55th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

access.redhat.com / security/cve/cve-2011-2480
Broken Link
bugs.debian.org / cgi-bin/bugreport.cgi
Third Party Advisory
bugs.debian.org / cgi-bin/bugreport.cgi
Third Party Advisory
security-tracker.debian.org / tracker/CVE-2011-2480
Third Party Advisory
openwall.com / lists/oss-security/2011/06/20/15
Mailing ListThird Party Advisory