CVE-2009-2844 json
cfg80211 in net/wireless/scan.c in the Linux kernel 2.6.30-rc1 and other versions before 2.6.31-rc6 allows remote attackers to cause a deni…
published 2009-08-18 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2834
- cvss
- 7.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.4%
- EPSS 3.4% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
cfg80211 in net/wireless/scan.c in the Linux kernel 2.6.30-rc1 and other versions before 2.6.31-rc6 allows remote attackers to cause a denial of service (crash) via a sequence of beacon frames in which one frame omits an SSID Information Element (IE) and the subsequent frame contains an SSID IE, which triggers a NULL pointer dereference in the cmp_ies function. NOTE: a potential weakness in the is_mesh function was also addressed, but the relevant condition did not exist in the code, so it is not a vulnerability.
Patch / fix
Exploit prediction
3.36% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
- Technology feeds
References
-
jon.oberheide.org
/files/cfg80211-remote-dos.c
patch
-
openwall.com
/lists/oss-security/2009/08/17/2
mailing-list, patch
-
openwall.com
/lists/oss-security/2009/08/17/1
mailing-list, patch
-
secunia.com
/advisories/36278
third-party-advisory
- git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=cd3468bad96c00b5a512f551674f36776129520e
-
securityfocus.com
/bid/36052
vdb-entry
- kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.30.5
Sources
- CVE List CVE-2009-2844
- NVD CVE-2009-2844
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