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CVE-2026-37462 High

GoBGP: Integer underflow in the BGPUpdate.DecodeFromBytes function

An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

Exploit probability 0.3%
Published June 3, 2026
Required by Not available
Last source change July 24, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

114 explicit affected versions

Go github.com/osrg/gobgp/v4
Go github.com/osrg/gobgp/v4

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities GHSA-pw7p-7fqv-hpj8

An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

View original source
Open Source Vulnerabilities CVE-2026-37462

An integer underflow in the BGPUpdate.DecodeFromBytes function (/bgp/bgp.go) of gobgp v4.3.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.

View original source
Open Source Vulnerabilities GO-2026-5971

GoBGP: Integer underflow in the BGPUpdate.DecodeFromBytes function in github.com/osrg/gobgp

View original source

05 / REFERENCES

Further evidence