Is CVE-2026-33987 actively exploited?

No active exploitation of CVE-2026-33987 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33987 be exploited remotely?

No. CVE-2026-33987 requires local access to exploit.

What is the CVSS score of CVE-2026-33987?

CVE-2026-33987 has a CVSS score of 6.6 (MEDIUM).

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MEDIUM

CVE-2026-33987

CWE-122Published: March 30, 2026· Updated: Apr 1, 2026

6.6

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in persistent_cache_read_entry_v3() in libfreerdp/cache/persistent.c, persistent->bmpSize is updated before winpr_aligned_recalloc(). If realloc fails, bmpSize is inflated while bmpData points to the old buffer. This issue has been patched in version 3.24.2.

NVD Source

Technical Analysis

CVE-2026-33987 requires local access, meaning attackers must already have a foothold on the target system.

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

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.6.