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Multiple Cisco products that embed/use the Snort 3 Detection Engine are affected by a vulnerability in DCE/RPC request processing that can be triggered by an unauthenticated remote attacker. The issue is an error in buffer-handling logic when parsing/processing DCE/RPC requests, resulting in an out-of-bounds read (notably described as occurring in Snort 3’s _bnfa_search_csparse_nfa method). An attacker can exploit the flaw by sending a large number of DCE/RPC requests over an established connection that is inspected by Snort 3, causing the engine to read past the end of an allocated buffer and potentially leak sensitive information from the Snort 3 data stream; the engine may also restart, interrupting packet inspection.
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What an attacker gets, and what they’ve been doing with it.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds read vulnerability in Cisco Snort 3's DCE/RPC protocol parsing, allowing remote attackers to extract sensitive information from memory.
An information disclosure vulnerability in Snort 3's processing of DCE/RPC requests, allowing unauthenticated remote attackers to leak sensitive information.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.