Is CVE-2026-49942 actively exploited?

No active exploitation of CVE-2026-49942 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-49942 be exploited remotely?

Yes. CVE-2026-49942 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-49942?

CVE-2026-49942 has a CVSS score of 7.3 (HIGH).

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HIGH

CVE-2026-49942

CWE-1289Published: June 4, 2026· Updated: Jun 17, 2026

7.3

CVSS v3.1

Official Description

Net::CIDR::Set versions through 0.20 for Perl did not validate network masks.

The mask portion of a network mask could contain Unicode digits such as the Arabic-Indic One (U+0661), or non-digits, which were ignored. This could allow network masks to accept larger networks.

Leading zeros were also accepted, but treated as decimal instead of octal. This could lead to confusion about what networks are acceptable.

NVD Source

Technical Analysis

CVE-2026-49942 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.