CVE-2008-3263
The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and 1.4.x before 1.4.21.2; Business Edition A.x.x, B.x.x before B.2.5.4, and C.x.x before C.1.10.3; AsteriskNOW; Appliance Developer Kit 0.x.x; and s800i 1.0.x before 1.2.0.1 allows remote attackers to cause a denial of service (call-number exhaustion and CPU consumption) by quickly sending a large number of IAX2 (IAX) POKE requests.
Key facts
- CVSS score
- 7.8 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C- Weakness (CWE)
- CWE-399
- EPSS score
- 28.0% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2008-3251)
- Published
- July 22, 2008
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2008-3251 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
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References
- http://downloads.digium.com/pub/security/AST-2008-010.html
- http://downloads.securityfocus.com/vulnerabilities/exploits/30321.pl(Exploit)
- http://secunia.com/advisories/31178
- http://secunia.com/advisories/31194
- http://secunia.com/advisories/34982
- http://security.gentoo.org/glsa/glsa-200905-01.xml
- http://www.securityfocus.com/archive/1/494675/100/0/threaded
- http://www.securityfocus.com/bid/30321(Exploit)
- http://www.securitytracker.com/id?1020535
- http://www.vupen.com/english/advisories/2008/2168/references
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43942
- https://www.redhat.com/archives/fedora-package-announce/2008-July/msg00839.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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