frr: denial of service via crafted BGP UPDATE message

A flaw was found in FRRouting FRR. An unauthenticated remote attacker can exploit an integer underflow vulnerability by supplying a specially crafted BGP Border Gateway Protocol UPDATE message. This issue can lead to a Denial of Service DoS...

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...

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...

PT-2026-45955

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...

CVE-2026-37460

CVE-2026-37460 affects FRRouting (FRR) stable/10.0–10.6. The issue is in the rfapiRibBi2Ri() function (rfapi_rib.c) where missing input validation can be triggered by a crafted BGP UPDATE message, leading to Denial of Service. Connected sources consistently describe the same flaw and affected ran...

EUVD-2026-26999

An out-of-bounds read in the ParseIP6Extended 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...

PT-2026-36831

Name of the Vulnerable Software and Affected Versions gobgp version 4.3.0 Description An out-of-bounds read in the ParseIP6Extended function within the '/bgp/bgp.go' file allows attackers to cause a Denial of Service DoS by supplying a crafted BGP UPDATE message. Recommendations As a temporary...

frr: crafted BGP UPDATE message leading to a crash

A flaw was found in FRRouting. A crash can occur for a crafted BGP UPDATE message without mandatory attributes for example, one with only an unknown transit attribute...

frr: crash from specially crafted MP_UNREACH_NLRI-containing BGP UPDATE message

A flaw was found in frr. A crash can occur when processing a crafted BGP UPDATE message with a MPUNREACHNLRI attribute and additional NLRI data that lacks mandatory path attributes...

frr: crash from specially crafted MP_UNREACH_NLRI-containing BGP UPDATE message

A flaw was found in frr. A crash can occur when processing a crafted BGP UPDATE message with a MPUNREACHNLRI attribute and additional NLRI data that lacks mandatory path attributes...

PT-2023-9207 · Frrouting +10 · Frrouting +10

Name of the Vulnerable Software and Affected Versions: FRRouting versions through 9.0.1 Description: The issue is related to the improper handling of a crafted BGP UPDATE message with a MP UNREACH NLRI attribute and additional NLRI data that lacks mandatory path attributes. This can cause a crash...