CVE-2026-61548

Publication date 20 July 2026

Last updated 21 September 2026

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

mmpstrucdata stack buffer overflow with oversized RFC5424 structured data

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rsyslog	26.04 LTS resolute	Fixed 8.2512.0-1ubuntu4.1
	24.04 LTS noble	Fixed 8.2312.0-3ubuntu9.3
	22.04 LTS jammy	Fixed 8.2112.0-2ubuntu2.4
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.1 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	8.1 · High
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-8598-1
rsyslog vulnerabilities
23 July 2026

Other references

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