{"id":"OESA-2026-3094","summary":"nmap security update","details":"Nmap ("Network Mapper") is a free and open source (license) utility for network discovery and security \\ auditing. It was designed to rapidly scan large networks, but works fine against single hosts.\r\n\r\nSecurity Fix(es):\n\nNmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (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 crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans.(CVE-2026-58058)","modified":"2026-08-18T01:21:21.124146336Z","published":"2026-07-19T11:11:58Z","upstream":["CVE-2026-58058"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3094"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58058"}],"affected":[{"package":{"name":"nmap","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/nmap&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.94-10.oe2403sp4"}]}],"ecosystem_specific":{"x86_64":["nmap-7.94-10.oe2403sp4.x86_64.rpm","nmap-debuginfo-7.94-10.oe2403sp4.x86_64.rpm","nmap-debugsource-7.94-10.oe2403sp4.x86_64.rpm"],"aarch64":["nmap-7.94-10.oe2403sp4.aarch64.rpm","nmap-debuginfo-7.94-10.oe2403sp4.aarch64.rpm","nmap-debugsource-7.94-10.oe2403sp4.aarch64.rpm"],"noarch":["nmap-help-7.94-10.oe2403sp4.noarch.rpm"],"src":["nmap-7.94-10.oe2403sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-3094.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"}]}