CVE-2020-17353

9.8 CRITICAL 2% exploit odds No fix listed Other

What it is

scm/define-stencil-commands.scm in LilyPond through 2.20.0, and 2.21.x through 2.21.4, when -dsafe is used, lacks restrictions on embedded-ps and embedded-svg, as demonstrated by including dangerous PostScript code.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 2.3% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2020-08-05 00:00 UTC ReservedThe CVE id was reserved by its CNA
2020-08-05 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:58 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.3% in the next 30 days (EPSS).
Severity: 9.8 CRITICAL (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2020-08-05 14:15 UTC
Last modified: 2026-06-17 02:58 UTC
Exploit probability: 2.3% · EPSS, next 30 days
Record status: Modified

Affected

Lilypond ≤ 2.20.0
Lilypond ≤ 2.21.4
Fedoraproject Fedora 31
Fedoraproject Fedora 32
Debian Linux 10.0
Opensuse Backports Sle 15.0
Opensuse Leap 15.2

Attack profile CVSS 3.1 · 9.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-17353.md and follow it. Check whether this project is affected by CVE-2020-17353. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record