CVE-2026-58058
⚪ Do wiadomości
Błąd w Nmap umożliwia atakującym wywołanie awarii przez odczyty poza zakresem.
CVSS
6.5
EPSS
0.3%
Exploit
none
Vendor
Opis źródłowy (NVD)
Nmap 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.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 6.5 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.3% |
| Opublikowano (NVD) | 2026-06-28 02:16:33 UTC |
| Ostatnia modyfikacja (NVD) | 2026-06-29 19:09:08 UTC |
Referencje
- https://github.com/bikini/exploitarium/tree/main/nmap-ipv6-extlen-wrap-poc (disclosure@vulncheck.com)
- https://github.com/nmap/nmap/commit/bb6754e76bb1686315008e1aa1c40202a513fb83 (disclosure@vulncheck.com)
- https://nmap.org/changelog.html (disclosure@vulncheck.com)
- https://www.vulncheck.com/advisories/nmap-integer-underflow-in-ipv6-extension-header-parsing (disclosure@vulncheck.com)