osrg GoBGP up to 4.3.0 AIGP Attribute Parser pkg/packet/bgp/bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in osrg GoBGP up to 4.3.0 and classified as critical. Affected by this vulnerability is the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. Executing a manipulation can lead to buffer overflow. This vulnerability is registered as CVE-2026-7735. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in osrg GoBGP up to 4.3.0. This vulnerability affects the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-7735. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 4.4.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 51ad1ada06cb41ce47b7066799981816f50b7ced is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GoBGP 4.4.0
Patch: 51ad1ada06cb41ce47b7066799981816f50b7ced

Timelineinfo

05/03/2026 Advisory disclosed
05/03/2026 +0 days VulDB entry created
05/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 51ad1ada06cb41ce47b7066799981816f50b7ced
Status: Confirmed

CVE: CVE-2026-7735 (🔒)
GCVE (CVE): GCVE-0-2026-7735
GCVE (VulDB): GCVE-100-360910

Entryinfo

Created: 05/03/2026 18:21
Changes: 05/03/2026 18:21 (59)
Complete: 🔍
Submitter: rensiru
Cache ID: 216::103

Submitinfo

Accepted

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