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CVE-2026-58058 is an integer-underflow vulnerability in Nmap through version 7.99. During raw IPv6 scanning, the IPv6 extension-header parser in ipv6_get_data_primitive can advance its packet pointer beyond the captured packet when processing a truncated extension header. The subsequent remaining-length calculation underflows to a large unsigned value, enabling out-of-bounds reads.
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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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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A network-accessible, low-complexity vulnerability requiring no privileges or user interaction, with low confidentiality and availability impact, affecting nmap/nmap-help packages on Huawei EulerOS 2.0.
A vulnerability tracked as CVE-2026-58058 affecting the nmap-help/nmap package on Huawei EulerOS 2.0. It is rated with network attack vector, low attack complexity, no privileges, and no user interaction; the listed impact is low confidentiality and availability impact with no integrity impact.
A network-accessible, low-complexity vulnerability affecting Nmap and nmap-help packages on Huawei EulerOS 2.0, with no privileges or user interaction required. It can cause limited confidentiality and availability impact.
A network-reachable, low-complexity vulnerability requiring no privileges or user interaction, affecting the EulerOS nmap and nmap-help packages. It permits limited confidentiality disclosure and limited availability impact.
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.