CVE-2026-31897

CVE-2026-31897 is a none-severity vulnerability in Freerdp with a CVSS 3.x base score of 0.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

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.

Frequently asked questions

What is CVE-2026-31897?
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.
How severe is CVE-2026-31897?
CVE-2026-31897 has a CVSS 3.x base score of 0.0, rated none severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability none.
Is CVE-2026-31897 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-31897?
CVE-2026-31897 affects Freerdp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-31897?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-31897 have an EU (EUVD) identifier?
Yes. CVE-2026-31897 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12064.
When was CVE-2026-31897 published?
CVE-2026-31897 was published on 2026-03-13 and last updated on 2026-06-17.

References

Affected products (1)

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