CVE-2020-17354

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.41% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 35.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2023-04-15 00:00Z3 YR AGO

Last updated

2025-02-06 17:00Z1 YR AGO

Reserved

2020-08-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

8271af692f7b8500b5d31ad3a66c5f2b7532940680b752af988a70c19d4e8a85

• lilypond.orghttp://lilypond.org/doc/v2.18/Documentation/usage/command_002dline-usage
• phabricator.wikimedia.orghttps://phabricator.wikimedia.org/T259210
• www.mediawiki.orghttps://www.mediawiki.org/wiki/Extension:Score/2021_security_advisory
• tracker.debian.orghttps://tracker.debian.org/news/1249694/accepted-lilypond-2221-1-source-into-unstable/
• gitlab.comhttps://gitlab.com/lilypond/lilypond/-/merge_requests/1522
• lilypond.orghttps://lilypond.org/download.html
• lists.fedoraproject.orgFEDORA-2023-fb8bc496c2https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST5BLLQ4GDME3SN7UE5OMNE5GZE66X4Y/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-6edb8fab0dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K43PF6VGFJNNGAPY57BW3VMEFFOSMRLF/vendor-advisory