CVE-2026-7736

osrg GoBGP mrt.go parseRibEntry integer underflow

HIGH
7.5
CVSS Score
Published: May 4, 2026 at 05:30 AM UTC
Updated: October 26, 2026 at 07:10 PM UTC
1 product affected across 1 vendorGoBGP

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation can lead to integer underflow. It is possible to launch the attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.4.04.04.14.24.3.0
Vendor states this is fixed in 4.4.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/360911
SignaturePermissions RequiredVDB Entry
Source: cverecord
https://vuldb.com/vuln/360911/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/807604
Product
Source: cverecord
https://github.com/osrg/gobgp/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-191CWE-189

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