pppoe: reload header pointer after dev_hard_header()

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CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

UBUNTU-CVE-2026-68121

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-68121 pppoe: reload header pointer after dev_hard_header()

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

Linux Distros Unpatched Vulnerability : CVE-2026-68121

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are...

CVE-2026-68121: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: pppoe: reload header pointer after devhardheader pppoesendmsg saves a pointer to the PPPoE header before calling devhardheader. Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This c...

CVE-2026-67596

CSL 1010 M2M 3G WiFi Module firmware through 2.2.1.4 contains a weak encryption vulnerability that allows unauthenticated attackers to recover all stored secrets in plaintext by reversing a single-byte XOR cipher that uses a static key to obfuscate the configuration backup file. Attackers can...

EUVD-2026-51157

CSL 1010 M2M 3G WiFi Module firmware through 2.2.1.4 contains a weak encryption vulnerability that allows unauthenticated attackers to recover all stored secrets in plaintext by reversing a single-byte XOR cipher with a static key applied to the configuration backup file. Attackers can trivially...

PT-2026-66507

Name of the Vulnerable Software and Affected Versions CSL 1010 M2M 3G WiFi Module versions prior to 2.2.1.5 Description The firmware uses a weak single-byte XOR cipher with a static key to obfuscate the configuration backup file. This allows unauthenticated attackers to reverse the cipher and...

PT-2026-69521

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the pppoe sendmsg function where a pointer to the PPPoE header is saved before calling dev hard header. Because device header callbacks can reallocate the skb head, an...

OESA-2026-2993 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix use-after-free in sndusbmixerfree When sndusbcreatemixer fails, sndusbmixerfree frees mixer-idelems but the controls already added to the ca...

The vulnerability of the fromAdvSetWan() function in the httpd daemon’s microprogramming software for Tenda F456 allows a attacker to execute arbitrary code or cause a service failure.

The vulnerability of the fromAdvSetWan function in the httpd daemon’s microprogramming-based router software Tenda F456 is related to the issue of the operation going beyond the buffer in memory when processing parameters like wanmode and PPPOepassword. Exploiting this vulnerability allows a remo...

CVE-2026-13564

A vulnerability was found in Edimax EW-7478APC 1.04. Affected is the function formPPPoESetup of the file /goform/formPPPoESetup of the component POST Request Handler. Performing a manipulation of the argument pppUserName results in stack-based buffer overflow. The attack can be initiated remotely...

EUVD-2026-40075

A vulnerability was found in Edimax EW-7478APC 1.04. Affected is the function formPPPoESetup of the file /goform/formPPPoESetup of the component POST Request Handler. Performing a manipulation of the argument pppUserName results in stack-based buffer overflow. The attack can be initiated remotely...

The vulnerability of the sub_3C6C0() function (/goform/QuickIndex) in the Tenda F453 router’s microprogramming system allows a hacker to execute arbitrary code or cause service failures.

The vulnerability of the sub3C6C0 function /goform/QuickIndex of the Tenda F453 router’s microprogramming system is related to the operation that goes beyond the buffer in memory when processing parameters mitlinktype and PPPOepassword. Exploiting this vulnerability allows a remote attacker to...

CVE-2026-53003

A flaw was found in the Linux kernel's Point-to-Point Protocol over Ethernet PPPoE driver. A remote attacker or a peer with a misconfigured implementation could send specially crafted Protocol Field Compression PFC frames. This could lead to a one-byte shift in the PPP payload, causing a four-byt...

CVE-2026-53003

The CVE-2026-53003 issue affects the Linux kernel PPPoE stack. A misbehaving peer can send a compressed Protocol Field (PFC) frame, causing the PPP payload to shift by one byte and creating a 4-byte misalignment in the network header, which may trigger unaligned access exceptions on some architec...

CVE-2026-53003 pppoe: drop PFC frames

In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression PFC is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an...

CVE-2026-53003: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: pppoe: drop PFC frames RFC 2516 Section 7 states that Protocol Field Compression PFC is NOT RECOMMENDED for PPPoE. In practice, pppd does not support negotiating PFC for PPPoE sessions, and the current PPPoE driver assumes an...