Is CVE-2026-12490 actively exploited?

No active exploitation of CVE-2026-12490 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-12490 be exploited remotely?

Yes. CVE-2026-12490 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-12490?

CVE-2026-12490 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-12490

HIGH

CVE-2026-12490

CWE-284Published: June 25, 2026· Updated: Jun 26, 2026

7.5

CVSS v3.1

EPSS:0.14%probability of exploitation in 30 daysPercentile:3.6th

Official Description

When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client certificate is needed when the request comes in over TLS over the regular tls-port (and not the tls-auth-port) or over over TCP over the regular port, when the other conditions of the provide-xfr rule match.

NVD Source

Technical Analysis

CVE-2026-12490 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.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.