CVE-2026-37462: n/a
An integer underflow vulnerability exists in the BGPUpdate.DecodeFromBytes function of gobgp version 4.3.0. This flaw allows an attacker to cause a Denial of Service (DoS) by sending a specially crafted BGP UPDATE message. The vulnerability has a high severity rating with a CVSS score of 7.5. No patch or official remediation has been indicated yet.
AI Analysis
Technical Summary
CVE-2026-37462 describes an integer underflow in the BGPUpdate.DecodeFromBytes function within gobgp version 4.3.0. This vulnerability can be triggered by an attacker supplying a crafted BGP UPDATE message, leading to a denial of service condition. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (DoS). There is no vendor advisory or patch information currently available.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the gobgp service. There is no confidentiality or integrity impact reported. The vulnerability can be exploited remotely without authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the gobgp service to untrusted networks and monitoring for anomalous BGP UPDATE messages.
CVE-2026-37462: n/a
Description
An integer underflow vulnerability exists in the BGPUpdate.DecodeFromBytes function of gobgp version 4.3.0. This flaw allows an attacker to cause a Denial of Service (DoS) by sending a specially crafted BGP UPDATE message. The vulnerability has a high severity rating with a CVSS score of 7.5. No patch or official remediation has been indicated yet.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-37462 describes an integer underflow in the BGPUpdate.DecodeFromBytes function within gobgp version 4.3.0. This vulnerability can be triggered by an attacker supplying a crafted BGP UPDATE message, leading to a denial of service condition. The CVSS 3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (DoS). There is no vendor advisory or patch information currently available.
Potential Impact
Successful exploitation results in denial of service, impacting the availability of the gobgp service. There is no confidentiality or integrity impact reported. The vulnerability can be exploited remotely without authentication.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of the gobgp service to untrusted networks and monitoring for anomalous BGP UPDATE messages.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-04-06T00:00:00.000Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a204ce6e29bf47b50ca11ae
Added to database: 06/03/2026, 15:48:54 UTC
Last enriched: 07/14/2026, 10:00:18 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 50
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