CVE-2026-12246 Out of bounds stack write with crafted APL RR

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes...

CVE-2026-12246

NSD 4.14.0 contains a vulnerability where a specially crafted APL RR with adflength exceeding the address family limit can cause a stack overwrite when writing the zone to disk, allowing up to 111 attacker-controlled bytes to influence memory. This is a data/stack corruption issue that affects th...

CVE-2026-12246

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes...

CVE-2026-12244

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

CVE-2026-12244

NSD (the DNS server) is affected when configured as a secondary for a zone. A primary can crash NSD by sending an AXFR containing a DNS message with a specially crafted SVCB RR whose rdata size is 65512, which causes an (uint16_t) length to overflow while allocating space for the RR wrap (total s...

CVE-2026-12244 Heap overflow and crash with crafted SVCB RR

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

CVE-2026-12244

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

CVE-2026-12244 Heap overflow and crash with crafted SVCB RR

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

CVE-2026-12244

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

PT-2026-52378

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning...

PT-2026-52393

An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation...

PT-2026-52390

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation...

CVE-2026-47150: Out-of-bounds Write

In EmberZNet v9.0.2 and earlier, malformed IAS Zone enrollment messages can trigger an out-of-bounds state-table write and terminate the process. The size and location of this write is limited. These messages must come from a device that has already joined the network. Only devices supporting the...

PT-2026-52403

Name of the Vulnerable Software and Affected Versions EmberZNet versions prior to 9.0.3 Description Malformed IAS Zone enrollment messages can trigger an out-of-bounds state-table write, which leads to process termination. This issue specifically affects devices that support the IAS Zone cluster...

PT-2026-52391

Incomplete validation of the SOA record present in a catalog zone might lead to a crash...

CVE-2026-12246: Buffer Copy without Checking Size of Input

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes...

PT-2026-52381

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description An attacker can cause outgoing TCP connections to a backend to remain stuck until a timeout occurs rather than being released immediately by sending IXFR...

Linux Distros Unpatched Vulnerability : CVE-2026-53127

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: block: fix zonescond memory leak on zone revalidation error paths When blkrevalidatediskzone...

CVE-2026-12244

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

PT-2026-52209

Name of the Vulnerable Software and Affected Versions NSD affected versions not specified Description A heap overflow occurs when NSD is configured as a secondary for a zone. A primary server can crash the system by sending an AXFR containing a DNS message with a specially crafted SVCB RR Resourc...