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CVE-2025-40597 is a heap-based buffer overflow in the SonicWall SMA 100 Series web interface. The flaw resides in the mod_httprp.so HTTP-request handling component and results from incorrect use of a safer sprintf variant while processing a malicious Host header. The condition can corrupt adjacent heap memory, allowing an unauthenticated remote attacker to cause a denial of service and potentially achieve code execution. Reliable remote code execution may be difficult because of the server's dynamic runtime behavior.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in SonicWall SMA 100 Series appliances that could allow denial-of-service or code execution.
A specific vulnerability in SonicWall SMA100 referenced as part of a set of memory corruption issues (stack/heap overflow context implied by the segment title).
A pre-authentication heap-based buffer overflow in the mod_httprp.so component of SonicWall SMA100 series SSL-VPN appliances that may cause denial of service or potentially remote code execution.
A heap-based buffer overflow vulnerability in the SonicWall SMA 100 Series web interface that may allow a remote unauthenticated attacker to cause denial of service or potentially achieve code execution.
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.