CVE-2026-64193: Net::DNS 0 through 1.55

CVE-2026-64193. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.01439 (percentile 0.73002), scored 24-Oct-2026.

Affected technology

Net::DNS · 0 through 1.55
NLNETLABS

Description’s affected range: versions through 1.55 for Perl

Component: Not specified by the source
Function: Net::DNS::RR::OPT::EXTENDED_ERROR::_decompose
File: lib/Net/DNS/RR/OPT.pm

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 01:29 UTC

CWE: CWE-95
CCR priority: 39.6 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.01439 · percentile 0.73002 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-64193.html