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CVE-2026-0206 is a post-authentication stack-based buffer overflow vulnerability in SonicOS affecting SonicWall Generation 6, Generation 7, and Generation 8 hardware and virtual firewall products. The available reporting states that, after authentication, a remote attacker can trigger a stack-based buffer overflow condition that causes the firewall to crash. Publicly provided details do not identify the specific vulnerable function or code path, but the flaw is consistently described as residing in SonicOS and requiring authenticated access.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity SonicWall SonicOS vulnerability affecting Gen 6, Gen 7, and Gen 8 firewall platforms.
A post-authentication stack-based buffer overflow vulnerability in SonicOS that allows a remote attacker to crash a firewall.
A post-authentication stack-based buffer overflow vulnerability in SonicWall SonicOS that can allow a remote attacker to crash the firewall, causing a denial-of-service condition.
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.