CVE-2025-43973

GoBGP before 3.35.0 contains an input length check in pkg/packet/rtr/rtr.go that does not verify there are enough bytes to form an RTR message. This can lead to processing issues when handling RTR messages. The issue is fixed in or after GoBGP 3.35.0; affected components are the RTR message handl...

CVE-2025-43972

CVE-2025-43972 affects GoBGP prior to 3.35.0. The vulnerability is in the flowspec parser within pkg/packet/bgp/bgp.go, where an attacker can trigger a crash by sending fewer than 20 bytes in a specific context. The impact is a crash (potential denial via crash) as described in multiple sources. ...

CVE-2025-43971

CVE-2025-43971 affects GoBGP prior to 3.35.0. The flaw in pkg/packet/bgp/bgp.go allows a panic to be triggered by a zero value for softwareVersionLen, as described in the vulnerability note. The issue is limited to the GoBGP code path involving BGP packet handling, and the impact is a denial of s...

CVE-2025-43970

GoBGP before 3.35.0 has an input length check flaw in pkg/packet/mrt/mrt.go during MRT parsing, where it fails to ensure required lengths (12 or 36 bytes depending on address family). The issue is documented in CVE-2025-43970 and is addressed by upgrading to GoBGP 3.35.0 or later. The Connected d...

CVE-2026-7734

The CVE-2026-7734 affects osrg GoBGP up to 4.3.0, specifically the SRv6 L3 Service component’s DecodeFromBytes function in pkg/packet/bgp/prefix_sid.go. The issue allows remote manipulation of input data to trigger a denial of service. A fix is available in GoBGP v4.4.0, with the patch identified...

CVE-2026-41643

GoBGP vulnerability CVE-2026-41643: a remote DoS (panic) in UpdatePathAttrs4ByteAs when processing BGP UPDATE messages containing both AS_PATH and AS4_PATH. The bug occurs in GoBGP v4.2.0 and earlier due to an index handling error that can trigger a runtime panic (index out of range) when the AS4...

CVE-2026-41642

CVE-2026-41642 – GoBGP DoS via malformed Well-known Path Attribute Affected software: GoBGP v4.3.0 (server component). Root cause: In the BGP UPDATE handling loop (recvMessageloop), a parsed but invalid path attribute (Well-known with unrecognized Type Code) is not properly halted, leading to a n...

CVE-2026-7735

The CVE concerns osrg GoBGP (up to 4.3.0) where the PathAttributeAigp.DecodeFromBytes function in pkg/packet/bgp/bgp.go handles the AIGP Attribute Parser. A manipulation can cause a buffer overflow, enabling remote initiation of an attack. This entry specifies that upgrading to version 4.4.0 addr...

CVE-2026-7736

The vulnerability CVE-2026-7736 affects osrg GoBGP up to version 4.3.0, specifically the parseRibEntry function in pkg/packet/mrt/mrt.go. The technical issue is an integer underflow triggered by manipulation, with remote exploit potential. A fix is available in GoBGP 4.4.0 (commit 76d911046344a39...

CVE-2026-30405

An issue in GoBGP gobgpd v.4.2.0 allows a remote attacker to cause a denial of service via the NEXT_HOP path attribute . Impact is categorized as high availability impact (CVSS 3.1 score: 7.5). Exploitation details are not provided in the documents, though a proof-of-concept (PoC) exists. Vulnera...

CVE-2026-42285

GoBGP CVE-2026-42285 causes a panic (nil pointer dereference) in AdjRib.Update when a remote unauthenticated BGP UPDATE message with inconsistent/short attribute lengths is processed as a withdraw, crashing the GoBGP process and causing DoS. The issue is triggered in version 4.4.0 and has a fix i...

CVE-2026-7737

CVE-2026-7737 affects osrg GoBGP up to 4.3.0. The vulnerability lies in the BMP parser, specifically BMPPeerUpNotification.ParseBody and BMPStatisticsReport.ParseBody in pkg/packet/bmp/bmp.go, where input manipulation leads to an out-of-bounds read. The issue is exploitable remotely. A fix is pub...

CVE-2026-37461

The GoBGP border gateway protocol implementation (v4.3.0) is vulnerable to an out-of-bounds read in the ParseIP6Extended function located in the /bgp/bgp.go file. A remote attacker can exploit this by supplying a crafted BGP UPDATE message to cause a Denial of Service (DoS) , leading to a service...

CVE-2026-5123

Summary: CVE-2026-5123 affects osrg GoBGP up to version 4.3.0. It concerns the function DecodeFromBytes in pkg/packet/bgp/bgp.go, where manipulating the data[1] argument can trigger an off-by-one condition. The issue potentially allows a remote attacker, with a highly complex attack surface, to i...

CVE-2026-5124

The CVE-2026-5124 entry concerns osrg GoBGP up to 4.3.0. Affected is BGPHeader.DecodeFromBytes in pkg/packet/bgp/bgp.go (BGP Header Handler). The issue is improper access controls with remote exploitation possible, reported as high complexity and low ease of exploitation. A patch is identified by...

CVE-2026-5122

The CVE affects osrg GoBGP ≤ 4.3.0, specifically the BGP OPEN Message Handler in pkg/packet/bgp/bgp.go DecodeFromBytes. Manipulating the domainNameLen argument results in improper access controls, potentially enabling remote exploitation. The attack is described with a high complexity requirement...