CVE-2026-15554

the Undertow AJP listener honours forged sslcert and isssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP...

DEBIAN-CVE-2026-15554

the Undertow AJP listener honours forged sslcert and isssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP...

PT-2026-70411

Name of the Vulnerable Software and Affected Versions Windows TCP/IP affected versions not specified Description A null pointer dereference in Windows TCP/IP allows an unauthorized attacker to cause a denial of service over a network. A null pointer dereference occurs when a program attempts to...

PT-2026-70542

Name of the Vulnerable Software and Affected Versions Windows TCP/IP affected versions not specified Description A stack-based buffer overflow in Windows TCP/IP allows an unauthorized remote attacker to execute arbitrary code over a network, potentially compromising the system. Recommendations At...

Linux Distros Unpatched Vulnerability : CVE-2026-68379

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: fix TIMEWAIT socket reference leak on PSP policy failure Release the TIMEWAIT socket reference and jump to discardit upon PSP policy failure in both IPv4 a...

PT-2026-70799

Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, good peer addr in src/server/ns turn server.c uses ioa addr in range in src/client/ns turn ioaddr.c without canonicalizing IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms, allowing an authenticated R...

PT-2026-70826

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...

Linux Distros Unpatched Vulnerability : CVE-2026-68290

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rds: tcp: unregister sysctl before tearing down listen socket rdstcpexitnet frees the per-netns RDS TCP listen socket via rdstcpkillsock before unregistering th...

PT-2026-70088

Name of the Vulnerable Software and Affected Versions Undertow affected versions not specified Description The Undertow AJP listener accepts forged ssl cert and is ssl AJP attributes without requiring shared-secret authentication. This allows an unauthenticated attacker with direct TCP access to...

CVE-2026-68284

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix cork use-after-free in tcpbpfsendmsg tcpbpfsendmsg keeps msgtx across skstreamwaitmemory, which drops and reacquires the socket lock. Its error path tries to decide whether msgtx names the local temporary messag...

CVE-2026-68169

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in getlocalid In mptcppmuserspacegetlocalid, the address entry is looked up under spinlock, but its id is read after dropping the lock. A concurrent deletion can free the entry between the...

CVE-2026-68170

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix stale skb-sk reference on subflow close The backlog list is updated by mptcpdataready under mptcpdatalock. The cleanup of backlog references to a closing subflow, however, was performed in mptcpclosessk, before...

UBUNTU-CVE-2026-68379

In the Linux kernel, the following vulnerability has been resolved: tcp: fix TIMEWAIT socket reference leak on PSP policy failure Release the TIMEWAIT socket reference and jump to discardit upon PSP policy failure in both IPv4 and IPv6 receive paths. This prevents a memory leak of tcptwbucket...

UBUNTU-CVE-2026-68290

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: unregister sysctl before tearing down listen socket rdstcpexitnet frees the per-netns RDS TCP listen socket via rdstcpkillsock before unregistering the per-netns sysctl table. Since rdstcpskbufhandler derives the netns...

CVE-2026-68119

In the Linux kernel, the following vulnerability has been resolved: tcp: initialize standalone TCP-AO response padding tcpv4sendack and tcpv6sendresponse construct standalone TCP responses with TCP-AO options. The option length carries the actual MAC length, but the TCP header length includes the...

CVE-2026-68118

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

UBUNTU-CVE-2026-68119

In the Linux kernel, the following vulnerability has been resolved: tcp: initialize standalone TCP-AO response padding tcpv4sendack and tcpv6sendresponse construct standalone TCP responses with TCP-AO options. The option length carries the actual MAC length, but the TCP header length includes the...

UBUNTU-CVE-2026-68122

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix peer refcount leak in TCP error paths When either the TCP RX or TX error path calls ovpnpeerhold followed by schedulework&peer-tcp.deferdelwork, and the work item is already pending from the other path, schedulework...

UBUNTU-CVE-2026-68118

In the Linux kernel, the following vulnerability has been resolved: tcp: challenge ACK for non-exact RST in SYN-RECEIVED The SYN-RECEIVED request-socket path in tcpcheckreq accepts an in-window RST without requiring SEG.SEQ to exactly match RCV.NXT. A non-exact RST therefore removes the request...

CVE-2026-68122

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix peer refcount leak in TCP error paths When either the TCP RX or TX error path calls ovpnpeerhold followed by schedulework&peer-tcp.deferdelwork, and the work item is already pending from the other path, schedulework...