Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an infinite loop, causing an out-of-memory condition that results in application crash.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote
    attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The
    malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an
    infinite loop, causing an out-of-memory condition that results in application crash. (CVE-2026-72712)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790157825 advisory.

  - Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote     attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The     malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an     infinite loop, causing an out-of-memory condition that results in application crash. (CVE-2026-72712)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789630245 advisory.

  - Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote     attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The     malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an     infinite loop, causing an out-of-memory condition that results in application crash. (CVE-2026-72712)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789630245 advisory.

  - Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote     attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The     malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an     infinite loop, causing an out-of-memory condition that results in application crash. (CVE-2026-72712)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote     attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The     malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an     infinite loop, causing an out-of-memory condition that results in application crash. (CVE-2026-72712)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
465344	Echo: nmap: security update to 7.95+dfsg-3+e2	Tenable Cloud Security	Echo Local Security Checks	Local	medium
465344	Echo: nmap: security update to 7.95+dfsg-3+e2	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
361682	AlmaLinux 9.2 [TuxCare] Security Update: nmap / nmap-ncat (ALMALINUX9.2:CLSA-2026:1790157825)	Nessus	Alma Linux Local Security Checks	Local	medium
360201	Rocky Linux 9.6 [TuxCare] Security Update: nmap / nmap-ncat (ALMALINUX9.6:CLSA-2026:1789630245)	Nessus	Rocky Linux Local Security Checks	Local	medium
360102	AlmaLinux 9.6 [TuxCare] Security Update: nmap / nmap-ncat (ALMALINUX9.6:CLSA-2026:1789630245)	Nessus	Alma Linux Local Security Checks	Local	medium
334902	Linux Distros Unpatched Vulnerability : CVE-2026-72712	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-72712

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium