Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package freerdp (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-FREERDP-15257266
- published11 Feb 2026
- disclosed15 May 2020
Introduced: 15 May 2020
CVE-2020-11521 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:unstable.
NVD Description
Note: Versions mentioned in the description apply only to the upstream freerdp package and not the freerdp package as distributed by Debian.
libfreerdp/codec/planar.c in FreeRDP version > 1.0 through 2.0.0-rc4 has an Out-of-bounds Write.
References
- https://security-tracker.debian.org/tracker/CVE-2020-11521
- https://pub.freerdp.com/cve/CVE-2020-11521/pocAnalysis_6.pdf
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5cwc-6wc9-255w
- https://github.com/FreeRDP/FreeRDP/commits/master
- https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
- https://usn.ubuntu.com/4379-1/
- https://usn.ubuntu.com/4382-1/
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-11521