Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86…

Description

Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.

Scores

EPSS (exploitation in 30 days)

1.6% · top 24% of all CVEs (3 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• info disclosure
• CWE-200 (opens in a new tab)Other CVEs with CWE-200

Affected products

• FreeBSD, NetBSD · FreeBSD

  • affected before 8.2

• FreeBSD, NetBSD · NetBSD

  • affected n/a

References (5)

• https://security-tracker.debian.org/tracker/CVE-2011-2480 (opens in a new tab)x_refsource_MISCx_transferred
• https://access.redhat.com/security/cve/cve-2011-2480 (opens in a new tab)x_refsource_MISCx_transferred
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631161 (opens in a new tab)x_refsource_MISCx_transferred
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631160 (opens in a new tab)x_refsource_MISCx_transferred
• [oss-security] 20110620 Re: CVE request: FreeBSD/NetBSD 802.11 kernel memory disclosure (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2011-2480](https://trackcve.app/badge/CVE-2011-2480.svg)](https://trackcve.app/cve/CVE-2011-2480)

Record last updated 6 Aug 2024, 23:00 UTC.