CVE-2026-32945 is a critical heap-based buffer overflow (CWE-122) in PJSIP versions 2.16 and below, specifically within the DNS parser's name length handler, affecting applications that use PJSIP's built-in DNS resolver. Rated 9.8 CRITICAL (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), this vulnerability allows unauthenticated remote attackers to achieve high confidentiality, integrity, and availability impacts without user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion. Organizations should upgrade to PJSIP 2.17 or implement workarounds such as disabling DNS resolution or using an external resolver.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.17CPE matchmatch criteria | cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.