ECHO-C06C-0CFB-1853

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ECHO-676A-E38E-E92A

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ECHO-86E7-62A2-45FC

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CVE-2026-43037

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: clear skb2-cb in ip4ip6err Oskar Kjos reported the following problem. ip4ip6err calls icmpsend on a cloned skb whose cb was written by the IPv6 receive path as struct inet6skbparm. icmpsend passes IPCBskb2 to...

ECHO-B6AB-FA46-B1FC

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ECHO-B315-3EC3-9F18

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ECHO-B507-5D7A-0C6F

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ECHO-9CCD-D5CE-B1A9

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ECHO-874C-29E0-D62B

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ECHO-EC69-C7B1-4F74

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ECHO-597F-0D7C-A9E6

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ECHO-73DA-59B1-BEFA

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ECHO-2EC8-1A62-F90D

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CVE-2026-7423

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

EUVD-2026-26276

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

CVE-2026-7423 Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP

Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service device crash when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without...

ECHO-916F-8705-1B52

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PT-2026-35974

Name of the Vulnerable Software and Affected Versions FreeRTOS-Plus-TCP versions prior to V4.4.1 FreeRTOS-Plus-TCP versions prior to V4.2.6 Description An integer underflow exists in the ICMP and ICMPv6 echo reply handlers when outgoing ping support is enabled. This occurs because header sizes ar...