CVE-2020-11042

Name: CVE-2020-11042
Creator: NVD / NIST
Published: 2020-05-07T19:15:11.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 1.77%

Last modified Jun 17, 2026

CVE-2020-11042 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

EPSS Probability

1.77%

75.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Freerdp	Freerdp	> 1.1.0, < 2.0.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	19.10
Canonical	Ubuntu Linux	20.04

References

https://github.com/FreeRDP/FreeRDP/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30fPatch, Third Party Advisory
https://github.com/FreeRDP/FreeRDP/issues/6010Exploit, Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2qThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00054.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List
https://usn.ubuntu.com/4379-1/Third Party Advisory
https://usn.ubuntu.com/4382-1/Third Party Advisory
https://github.com/FreeRDP/FreeRDP/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30fPatch, Third Party Advisory
https://github.com/FreeRDP/FreeRDP/issues/6010Exploit, Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2qThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00054.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.htmlMailing List
https://usn.ubuntu.com/4379-1/Third Party Advisory
https://usn.ubuntu.com/4382-1/Third Party Advisory

Timeline

Published: May 7, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11042?

How severe is CVE-2020-11042?

CVE-2020-11042 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11042?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11042?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST