CVE-2026-58058

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

CVE-2026-58058

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a craft...

CVE-2026-58058

CVE-2026-58058 : Nmap up to 7.99 is affected by an integer underflow in IPv6 extension-header parsing (ipv6_get_data_primitive in libnetutil/netutil.cc). A crafted or truncated IPv6 extension header returned by a scanned target or on-path attacker can cause the remaining-length to underflow to a ...