Heap-based Buffer Overflow Affecting pjsip/pjproject package, versions [,2.17)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Mar 2026
- disclosed20 Mar 2026
- creditarthurscchan
Introduced: 20 Mar 2026
CVE-2026-32945 (opens in a new tab)How to fix?
Upgrade pjsip/pjproject to version 2.17 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the DNS parser when handling name length. An attacker can cause memory corruption or execute arbitrary code by sending specially crafted DNS responses to applications using the built-in DNS resolver. This is only exploitable if the application is configured to use the built-in DNS resolver via pjsua_config.nameserver or UaConfig.nameserver.
Workaround
This vulnerability can be mitigated by disabling DNS resolution in the configuration (setting nameserver_count to zero) or by using an external resolver implementation.