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CVE-2026-6581 is a remotely exploitable buffer overflow vulnerability affecting H3C Magic B1 devices up to version 100R004. The flaw is reported in the SetMobileAPInfoById function within /goform/aspForm. According to the available description, crafted manipulation of the param argument can trigger the overflow condition. Public reporting indicates that exploitation is possible over the network and that exploit code is publicly available. The available source material does not provide deeper implementation details such as the exact buffer, stack/heap placement, bounds-check failure, or crash/execution path beyond the affected function and parameter.
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What an attacker gets, and what they’ve been doing with it.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.