CVE-2006-6931 json
Algorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rules, allows remote a…
published 2007-01-16 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-6914
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Algorithmic complexity vulnerability in Snort before 2.6.1, during predicate evaluation in rule matching for certain rules, allows remote attackers to cause a denial of service (CPU consumption and detection outage) via crafted network traffic, aka a "backtracking attack."
Exploit prediction
2.45% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
security.gentoo.org
/glsa/glsa-200702-03.xml
vendor-advisory
-
mandriva.com
/security/advisories?name=MDKSA-2007:051
vendor-advisory
-
cs.wisc.edu
/~smithr/pubs/acsac2006.pdf
vendor-advisory
-
acsac.org
/2006/papers/54.pdf
vendor-advisory
-
securityfocus.com
/bid/21991
vdb-entry
- cs.wisc.edu /~smithr/pubs/randy_smith_acsac2006.zip
-
lists.immunitysec.com
/pipermail/dailydave/2007-January/003954.html
mailing-list
-
secunia.com
/advisories/24164
third-party-advisory
-
secunia.com
/advisories/24338
third-party-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/31430
vdb-entry
-
osvdb.org
/32096
vdb-entry
-
secunia.com
/advisories/23716
third-party-advisory
-
securitytracker.com
/id?1017508
vdb-entry
- acsac.org /2006/advance_program.html
- acsac.org /2006/abstracts/54.html
- snort.org /pub-bin/snortnews.cgi
Sources
- CVE List CVE-2006-6931
- NVD CVE-2006-6931
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.