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A denial-of-service vulnerability exists in the Border Gateway Protocol (BGP) confederation implementation of Cisco IOS XR Software. The issue is caused by memory corruption when a BGP UPDATE is created with an AS_CONFED_SEQUENCE path attribute containing 255 autonomous system numbers. An unauthenticated remote attacker who controls a BGP confederation speaker within the same autonomous system as the target, or a network topology that causes the AS_CONFED_SEQUENCE attribute to grow to 255 AS numbers or more, can trigger the flaw by sending a crafted BGP UPDATE message. Successful exploitation can corrupt memory in the BGP process and cause the process to restart.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Cross-references every affected SKU, including bundled OEM variants.
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