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CVE-2008-3263

7.8 · HIGH
Published Jul 22, 2008 asterisk CWE-399 EPSS 28.00% (98th pctl)

Overview

CVE-2008-3263 is a high-severity vulnerability affecting asterisk asterisk. It was published on July 22, 2008 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

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.

Remediation

Check the references section for vendor advisories and patches from asterisk. Update asterisk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-2008-3263?

CVE-2008-3263 is a high-severity vulnerability affecting asterisk asterisk. It was published on July 22, 2008 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2008-3263?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-3263?

Check the references section for vendor advisories and patches from asterisk. Update asterisk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2008-3263?

CyberStrike's AI-powered security agents can automatically detect CVE-2008-3263 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.