CVE-2026-42798

Publication date 5 May 2026

Last updated 6 May 2026

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

Little CMS (lcms2) 2.16 through 2.18 before 2.19 has an integer overflow in ParseCube in cmscgats.c.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
lcms2	26.04 LTS resolute	Vulnerable
	25.10 questing	Vulnerable
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

mdeslaur

vulnerable code introduced in 2.16

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
lcms2	Upstream: 6a68601

Severity score breakdown

Parameter	Value
Base score	4.0 · Medium
Attack vector	Local
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Other references

https://www.cve.org/CVERecord?id=CVE-2026-42798

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