What is CVE-2020-11039?

CVE-2020-11039 is a high-severity vulnerability in Freerdp, classified under Integer Overflow or Wraparound. CVSS score: 8.0/10. Published 2020-05-29.

How severe is CVE-2020-11039?

High severity. CVSS v3 base score is 8.0 out of 10.

Integer overflow in Freerdp

CVE-2020-11039

In FreeRDP less than or equal to 2.0.0, when using a manipulated server with USB redirection enabled (nearly) arbitrary memory can be read and written due to integer overflows in length checks. This has been patched in 2.1.0.

Vulnerability class: Integer Overflow

Published 2020-05-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Freerdp — versions <= 2.0.0
Debian Linux — versions 10.0
openSUSE Leap — versions 15.1

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mx9p-f6q8-mqwq (Third Party Advisory)
lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html (vendor-advisory, Third Party Advisory)
lists.debian.org/debian-lts-announce/2023/10/msg00008.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11039?: CVE-2020-11039 is a high-severity vulnerability in Freerdp, classified under Integer Overflow or Wraparound. CVSS score: 8.0/10. Published 2020-05-29.
How severe is CVE-2020-11039?: High severity. CVSS v3 base score is 8.0 out of 10.