Information disclosure in FreeBSD, NetBSD FreeBSD
Priority LOW 36CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
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.
Why it matters now
EPSS 0.01592 75th percentileScored 2026-11-07
Fix Fixed FreeBSD (FreeBSD, NetBSD): 8.2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FreeBSD, NetBSD | FreeBSD | before 8.2 | 8.2 | Patch available | CNA |
| FreeBSD, NetBSD | NetBSD | all versions | — | No fix listed | CNA |
- FreeBSD VendorFreeBSD, NetBSD Affected before 8.2 Fixed in 8.2 Patch available CNA
- NetBSD VendorFreeBSD, NetBSD Affected all versions Fixed in — No fix listed CNA
Remediation
- Fix · CNA FreeBSD (FreeBSD, NetBSD) Fixed in 8.2
Timeline
- 2026-10-02 Threatist record created from CVE-2011-2480
- 2026-10-03 Alias added: GHSA-44jh-wjf8-4jgx
References
Advisory 4
Sources
- CVE-2011-2480 · CVE Program
- CVE-2011-2480 · NVD
- FIRST EPSS
- GHSA-44jh-wjf8-4jgx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences