Is CVE-2026-2556 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-2556, but active exploitation has not been confirmed.

Can CVE-2026-2556 be exploited remotely?

Yes. CVE-2026-2556 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2556?

CVE-2026-2556 has a CVSS score of 6.3 (MEDIUM) and an EPSS exploitation probability of 0.01%.

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MEDIUMPOC

CVE-2026-2556

CWE-918Published: February 16, 2026· Updated: Feb 20, 2026

6.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.5th

Official Description

A security vulnerability has been detected in cskefu up to 8.0.1. This issue affects some unknown processing of the file com/cskefu/cc/controller/resource/MediaController.java of the component Endpoint. The manipulation of the argument url leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-2556 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2026-2556. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.