Vulnerability in Freerdp
CVE-2026-121386
FreeRDP before 3.32.2 contains a denial of service vulnerability in WinPR's winpr_read_png_from_buffer() and winpr_convert_from_jpeg(), which lack libpng/libjpeg error handling. A malicious RDP server or MITM can offer a malformed PNG or truncated JPEG clipboard payload, causing the client to abort or exit.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-799q-hjgw-g55g (vendor-advisory, Vendor Advisory)
- www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-winpr-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-121386?
- CVE-2026-121386 is a high-severity vulnerability in Freerdp, classified under CWE-248. CVSS score: 7.5/10. Published 2026-11-03.
- How severe is CVE-2026-121386?
- High severity. CVSS v3 base score is 7.5 out of 10.