An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

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Fixes

Solution

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Workaround

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History

Wed, 03 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Title Integer Underflow in Gobgp BGP Update Decoding Enables DoS
Weaknesses CWE-189

Wed, 03 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 18:15:00 +0000

Type Values Removed Values Added
Title Integer Underflow in Gobgp BGP Update Decoding Enables DoS
Weaknesses CWE-189

Wed, 03 Jun 2026 17:45:00 +0000

Type Values Removed Values Added
First Time appeared Osrg
Osrg gobgp
Vendors & Products Osrg
Osrg gobgp

Wed, 03 Jun 2026 16:00:00 +0000

Type Values Removed Values Added
Description An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-03T18:14:01.925Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-37462

cve-icon Vulnrichment

Updated: 2026-06-03T18:12:55.552Z

cve-icon NVD

Status : Received

Published: 2026-06-03T16:16:29.120

Modified: 2026-06-03T19:16:37.377

Link: CVE-2026-37462

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-03T21:15:28Z

Weaknesses

No weakness.