CVE-2026-7737

Publication date 4 May 2026

Last updated 6 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A vulnerability was identified in osrg GoBGP up to 4.3.0. Affected by this issue is the function BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody of the file pkg/packet/bmp/bmp.go of the component BMP Parser. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. Upgrading to version 4.4.0 can resolve this issue. The identifier of the patch is bc77597d42335c78464bc8e15a471d887bbdf260. Upgrading the affected component is recommended.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gobgp	26.04 LTS resolute	Fixed 3.36.0-2ubuntu0.1~esm1
	25.10 questing	Vulnerable
	24.04 LTS noble	Fixed 3.23.0-1ubuntu0.3+esm4
	22.04 LTS jammy	Fixed 2.25.0-3ubuntu0.1+esm4
	20.04 LTS focal	Fixed 2.12.0-1ubuntu0.1~esm3
	18.04 LTS bionic	Fixed 1.29-1ubuntu0.1+esm2

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Patch details

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

Package	Patch details
gobgp	Upstream: bc77597

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-8348-1
GoBGP vulnerabilities
3 June 2026