CVE-2026-23247 tcp: secure_seq: add back ports to TS offset

In the Linux kernel, the following vulnerability has been resolved: tcp: secureseq: add back ports to TS offset This reverts 28ee1b746f49 "secureseq: downgrade to per-host timestamp offsets" tcptwrecycle went away in 2017. Zhouyan Deng reported off-path TCP source port leakage via SYN cookie...

CVE-2026-23247

In the Linux kernel, the following vulnerability has been resolved: tcp: secureseq: add back ports to TS offset This reverts 28ee1b746f49 "secureseq: downgrade to per-host timestamp offsets" tcptwrecycle went away in 2017. Zhouyan Deng reported off-path TCP source port leakage via SYN cookie...

Linux Distros Unpatched Vulnerability : CVE-2026-23247

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: secureseq: add back ports to TS offset This reverts 28ee1b746f49 secureseq: downgrade to per-host timestamp offsets tcptwrecycle went away in 2017. Zhouyan...

PT-2026-34358

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the XFS file system where log items may be dereferenced after push callbacks. Specifically, after the xfsaild push item function calls iop push, the log item might hav...

DEBIAN-CVE-2026-2967

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

UBUNTU-CVE-2026-2967

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

CVE-2026-2967

The CVE-2026-2967 entry describes a vulnerability in Cesanta Mongoose up to version 7.20, specifically in the getpeer function of /src/net_builtin.c within the TCP Sequence Number Handler. The underlying issue is improper verification of the source of a communication channel, potentially enabling...

CVE-2026-2967

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

CVE-2026-2967 Cesanta Mongoose TCP Sequence Number net_builtin.c getpeer verification of source

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

CVE-2026-2967

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

Cesanta Mongoose security vulnerabilities

Cesanta Mongoose is a set of embedded server libraries developed by the Irish company Cesanta. It includes functions for TCP and HTTP clients and servers, as well as WenSocket clients and servers. Versions of Cesanta Mongoose 7.20 and earlier contained security vulnerabilities. These...

PT-2026-21494

Name of the Vulnerable Software and Affected Versions Cesanta Mongoose versions prior to 7.21 Description A security issue exists in Cesanta Mongoose. The getpeer function within the TCP Sequence Number Handler component, located in /src/net builtin.c, does not properly verify the source of a...

CVE-2026-2967: Improper Verification of Source of a Communication Channel

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

CVE-2026-2967

A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...

Security Advisory 0134

Security Advisory 0134 . CSAF PDF Date: February 17, 2026 Revision | Date | Changes ---|---|--- 1.0 | February 17, 2026 | Initial release 1.1 | August 10, 2026 | Added CSAF JSON file for download The CVE-ID tracking this issue: CVE-2026-2379 CVSSv3.1 Base Score: 5.9...

RUSTSEC-2026-0071 Nonce Reuse in HPKE Context

The sequence number that is used to compute the AEAD nonce when using a re-usable HPKE context is incremented after each seal or open operation. This sequence number was stored as a u32 and used regular addition on u32 for the increment, meaning in release mode it would silently wrap around to 0...

Nonce Reuse in HPKE Context

The sequence number that is used to compute the AEAD nonce when using a re-usable HPKE context is incremented after each seal or open operation. This sequence number was stored as a u32 and used regular addition on u32 for the increment, meaning in release mode it would silently wrap around to 0...

CVE-2026-23060

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD assoclen8 to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, cryptoauthencesndecrypt can advance past the end of...

CVE-2026-23060 crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD assoclen8 to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, cryptoauthencesndecrypt can advance past the end of...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001392)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001392 advisory. An issue was discovered in the Linux kernel through 4.18.8. The vmacacheflushall function in mm/vmacache.c mishandles sequence number overflows. An attacker can...