CVE-2007-4521

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-08-28 · updated 2026-06-16

Description

Asterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail storage backend, allows remote attackers to cause a denial of service via an e-mail with an "invalid/corrupted" MIME body, which triggers a crash when the recipient listens to voicemail.

Affected products

Asterisk: 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10 (+1)

References

http://downloads.digium.com/pub/asa/AST-2007-021.html
http://secunia.com/advisories/26601
http://secunia.com/advisories/26602
http://securityreason.com/securityalert/3065
http://www.securityfocus.com/archive/1/477729/100/0/threaded
http://www.securityfocus.com/bid/25438
http://www.securitytracker.com/id?1018606
http://www.vupen.com/english/advisories/2007/2978
https://exchange.xforce.ibmcloud.com/vulnerabilities/36261
http://downloads.digium.com/pub/asa/AST-2007-021.html
http://secunia.com/advisories/26601
http://secunia.com/advisories/26602

Get alerted when CVE-2007-4521 or the next vulnerability affects your stack