CVE-2008-3263 describes a denial-of-service vulnerability in the IAX2 protocol implementation of various Asterisk Open Source, Business Edition, AsteriskNOW, Appliance Developer Kit, and s800i versions. Remote attackers can exploit this by sending numerous IAX2 POKE requests, leading to call-number exhaustion and high CPU consumption. With a CVSS score of 7.8 (High), this vulnerability is easily exploitable over the network with no authentication required, resulting in a complete loss of availability. While not listed in CISA's KEV catalog, an ExploitDB entry exists, indicating public exploit code, though there is no evidence of widespread active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.1.0CPE matchmatch criteria | cpe:2.3:a:asterisk:asterisk:0.1.0:*:*:*:*:*:*:* | ||
0.1.1CPE matchmatch criteria | cpe:2.3:a:asterisk:asterisk:0.1.1:*:*:*:*:*:*:* | ||
0.1.2CPE matchmatch criteria | cpe:2.3:a:asterisk:asterisk:0.1.2:*:*:*:*:*:*:* | ||
0.1.3CPE matchmatch criteria | cpe:2.3:a:asterisk:asterisk:0.1.3:*:*:*:*:*:*:* | ||
0.1.4CPE matchmatch criteria | cpe:2.3:a:asterisk:asterisk:0.1.4:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.