AlmaLinux 9.2 [TuxCare] Security Update: nmap / nmap-ncat (ALMALINUX9.2:CLSA-2026:1788629925)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788629925 advisory. - Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so...

AlmaLinux 9.6 [TuxCare] Security Update: nmap / nmap-ncat (ALMALINUX9.6:CLSA-2026:1788628939)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1788628939 advisory. - Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6getdataprimitive libnetutil/netutil.cc, so...

OESA-2026-2958 nmap security update

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. Security Fixes: Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured...

OESA-2026-2956 nmap security update

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. Security Fixes: Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured...

UBUNTU-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: Integer Underflow (Wrap or Wraparound)

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...

PT-2026-53090

Name of the Vulnerable Software and Affected Versions Nmap versions 7.0.0 through 7.99 Description An issue exists in the ipv6 get data primitive function libnetutil/netutil.cc where the IPv6 extension-header walk is not kept within the captured packet. This causes the pointer to advance past the...