CVE-2020-26683

Publication date 22 August 2023

Last updated 17 October 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A memory leak issue discovered in /pdf/pdf-font-add.c in Artifex Software MuPDF 1.17.0 allows attackers to obtain sensitive information.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
mupdf	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Fixed 1.16.1+ds1-1ubuntu1+esm1
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support

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Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-7825-1
MuPDF vulnerabilities
16 October 2025