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I. Basic Information for CVE-2026-5122
Vulnerability Information

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Vulnerability Title
osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
GoBGP 访问控制错误漏洞
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及之前版本存在访问控制错误漏洞,该漏洞源于对文件pkg/packet/bgp/bgp.go中参数domainNameLen的错误操作,可能导致访问控制不当。
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
VendorProductAffected VersionsCPESubscribe
osrgGoBGP 4.0 -
II. Public POCs for CVE-2026-5122
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III. Intelligence Information for CVE-2026-5122
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IV. Related Vulnerabilities
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