CVE-2020-11521

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.95% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 79.7% of scored records. A rank, not a probability.

NVD base score

6.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2020-05-15 16:07Z6 YR AGO

Last updated

2024-08-04 11:35Z2 YR AGO

Reserved

2020-04-04

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase
• CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

3e77977f28ef4797edccf876109a224cd37fb1e52bad4d3d331a2ba18fd9d88c

• github.comhttps://github.com/FreeRDP/FreeRDP/commits/masterx_refsource_MISC
• github.comhttps://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5cwc-6wc9-255wx_refsource_CONFIRM
• pub.freerdp.comhttps://pub.freerdp.com/cve/CVE-2020-11521/pocAnalysis_6.pdfx_refsource_CONFIRM
• usn.ubuntu.comUSN-4379-1https://usn.ubuntu.com/4379-1/vendor-advisoryx_refsource_UBUNTU
• usn.ubuntu.comUSN-4382-1https://usn.ubuntu.com/4382-1/vendor-advisoryx_refsource_UBUNTU
• lists.opensuse.orgopenSUSE-SU-2020:1090http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.htmlvendor-advisoryx_refsource_SUSE
• lists.debian.org[debian-lts-announce] 20200829 [SECURITY] [DLA 2356-1] freerdp security updatehttps://lists.debian.org/debian-lts-announce/2020/08/msg00054.htmlmailing-listx_refsource_MLIST