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CVE-2026-7735— osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow

Quick assessment

Affected
osrg GoBGP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GoBGP是osrg开源的一种开源的边界网关协议（BGP）实现。 GoBGP 4.3.0及之前版本存在缓冲区错误漏洞，该漏洞源于组件AIGP Attribute Parser中文件pkg/packet/bgp/bgp.go的函数PathAttributeAigp.DecodeFromBytes存在缓冲区溢出，攻击者可远程执行攻击。

CVSS 7.3 · High EPSS 0.61% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
osrg GoBGP 4.0 affected
4.1 affected
4.2 affected
4.3.0 affected
4.4.0 unaffected
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I. Basic Information for CVE-2026-7735

Vulnerability Information
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Vulnerability Title
osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in osrg GoBGP up to 4.3.0. Affected is the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. Performing a manipulation results in buffer overflow. It is possible to initiate the attack remotely. Upgrading to version 4.4.0 is able to address this issue. The patch is named 51ad1ada06cb41ce47b7066799981816f50b7ced. The affected component should be upgraded.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
GoBGP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GoBGP是osrg开源的一种开源的边界网关协议（BGP）实现。 GoBGP 4.3.0及之前版本存在缓冲区错误漏洞，该漏洞源于组件AIGP Attribute Parser中文件pkg/packet/bgp/bgp.go的函数PathAttributeAigp.DecodeFromBytes存在缓冲区溢出，攻击者可远程执行攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
osrg GoBGP 4.0 cpe:2.3:a:osrg:gobgp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-7735

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III. Intelligence Information for CVE-2026-7735

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Patches & Fixes for CVE-2026-7735 (1)

Vendor Pages for CVE-2026-7735 (1)

Same Patch Batch · osrg · 2026-05-04 · 4 CVEs total

CVE-2026-7736 7.3 HIGH osrg GoBGP mrt.go parseRibEntry integer underflow
CVE-2026-7734 5.3 MEDIUM osrg GoBGP SRv6 L3 Service prefix_sid.go SRv6L3ServiceAttribute.DecodeFromBytes denial of
CVE-2026-7737 5.3 MEDIUM osrg GoBGP BMP Parser bmp.go BMPStatisticsReport.ParseBody out-of-bounds

IV. Related Vulnerabilities

Same product: GoBGP
Same vendor: osrg
Same weakness: CWE-120

V. Comments for CVE-2026-7735

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