HOMEVULNERABILITIESCVE-2026-31897
CRITICAL

CVE-2026-31897

CWE-125Published: March 13, 2026· Updated: Mar 17, 2026

9.1
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:7.8th

Official Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, there is an out-of-bounds read in freerdp_bitmap_decompress_planar when SrcSize is 0. The function dereferences *srcp (which points to pSrcData) without first verifying that SrcSize >= 1. When SrcSize is 0 and pSrcData is non-NULL, this reads one byte past the end of the source buffer. This vulnerability is fixed in 3.24.0.

NVD Source

Technical Analysis

CVE-2026-31897 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), availability disruption (denial of service), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Vendors & Products

FreeRDP1 product
freerdp
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2026-31897
CVSS Score9.1 / 10
SeverityCRITICAL
WeaknessCWE-125
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 13, 2026

Related CVEs (CWE-125)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-31897 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.