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Fencer Vulns
high 7.8

CVE-2008-3263 in the critical feed json

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…

published 2008-07-22 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3251

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
28.0%
EPSS 28.0% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • asterisk Debian 14 1:1.4.21.2~dfsg-1

debian advisories DEBIAN-CVE-2008-3263

Timeline

  1. First public exploit (EDB-32095)
  2. Published

Exploit prediction

28.00% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-32095 Asterisk 1.6 IAX - 'POKE' Requests Remote Denial of Service dos, 2008-07-21
  • securityfocus.com http://www.securityfocus.com/bid/30321 referenced PoC, tagged "exploit" by a source, unverified
  • downloads.securityfocus.com http://downloads.securityfocus.com/vulnerabilities/exploits/30321.pl referenced PoC, tagged "exploit" by a source, unverified

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

References

Sources

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.