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CVE-2026-7737— osrg GoBGP BMP Parser bmp.go BMPStatisticsReport.ParseBody out-of-bounds

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BMP Parser中文件pkg/packet/bmp/bmp.go的函数BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody存在越界读取，攻击者可远程执行攻击。

CVSS 5.3 · Medium EPSS 0.90% · P58

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-2026-7737

Vulnerability Information
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Vulnerability Title
osrg GoBGP BMP Parser bmp.go BMPStatisticsReport.ParseBody out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in osrg GoBGP up to 4.3.0. Affected by this issue is the function BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody of the file pkg/packet/bmp/bmp.go of the component BMP Parser. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. Upgrading to version 4.4.0 can resolve this issue. The identifier of the patch is bc77597d42335c78464bc8e15a471d887bbdf260. Upgrading the affected component is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
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BMP Parser中文件pkg/packet/bmp/bmp.go的函数BMPPeerUpNotification.ParseBody/BMPStatisticsReport.ParseBody存在越界读取，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-2026-7737

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III. Intelligence Information for CVE-2026-7737

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Patches & Fixes for CVE-2026-7737 (1)

Vendor Pages for CVE-2026-7737 (1)

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

CVE-2026-7735 7.3 HIGH osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow
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

IV. Related Vulnerabilities

Same product: GoBGP
Same vendor: osrg
Same weakness: CWE-125

V. Comments for CVE-2026-7737

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