CVE-2026-40369

This is a rewrite and summary of VoidSec’s public technical analysis of CVE-2026-40369, with an added flowchart and defensive notes for my own understanding. All core technical details come from his research. I did not perform independent reverse engineering on this bug. CVE-2026-40369: Defensive...

cve-2024-58239

CVE-2024-58239 mitigation exploit This is my first 1-day exploit. Patch: tls: stop recv if initial processrxlist gave us non-DATA I saw exp407 on the kernelCTF spreadsheet and tried to reproduce the exploit. I managed to run the exploit on the kernelCTF environment and get the flag: I will write ...

CVE-2004-0558

This is a proof of concept exploit for CVE-2004-0558 Specific versions of CUPs 1.1.x are vulnerable to a Denial of Service attack when sent a zero-length UDP packet https://www.exploit-db.com/exploits/24599/ It's worth noting that this can be achieved with nmap, and this exploit was developed for...

CVE-2025-39682

CVE-2025-39682 — Linux kTLS zero-length rxlist record UAF tracking site Source for the CVE-2025-39682 patch-status tracker: a single-page site recording which distributions have shipped a fix for a use-after-free in the Linux kernel's kTLS receive path net/tls. Where the facts live Everything abo...

eero-zero-length-ipv6-options-header-dos

eeroOS Ethernet Interface Denial of Service Vulnerability CVE-2023-5324 If eero Pro 5 devices receive an IPv6 packet where the payload length is zero and contains a hop-by-hop or destination options extension header that refers to another hop-by-hop or destination options extension header that...

DEBIAN-CVE-2026-111373

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

CVE-2026-111373

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

CVE-2026-111373

FreeRDP versions before 3.32.0 are vulnerable to a NULL pointer dereference within the websocket transport component. A malicious gateway or remote server can trigger a Denial of Service (DoS) by sending a zero-length WebSocket ping message. During processing, the websocket_reply_pong function pa...

CVE-2026-111373 FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

CVE-2026-111373 FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

EUVD-2026-102554

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

CVE-2026-111373: NULL Pointer Dereference

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

UBUNTU-CVE-2026-111373

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

Red Hat: CVE-2026-111373: freerdp: FreeRDP: Denial of Service via zero-length WebSocket ping

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocketreplypong passes a nullptr stream to websocketreplyclose, triggering an...

Linux Distros Unpatched Vulnerability : CVE-2026-111373

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Misc: pciendpointtest: Fixed the panic that occurs when calling pciendpointtestcopy,write,read The dmamapsingle function does not allow zero-length mappings. This causes a panic. A panic was reported on the arm64 architecture:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: tls: fixed handling of zero-length records in the rxlist Each recvmsg call must process either: - only contiguous DATA records any number of them - one non-DATA record If the next record has a different type than those that ha...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btrtl – Prevent potential NULL dereferencing. The btrtlinitialize function checks whether rtlloadfile either had an error or loaded a zero-length file. However, if it loads a zero-length file, the error code is not set...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hugetlbfs: fixed the null-ptr-deref issue in hugetlbfsParseParam Syzkaller reported a null-ptr-deref bug as follows: ====================================================== KASAN: null-ptr-deref in range...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed an infinite loop issue when len is 0 in the tcpbpfrecvmsg parser. When the buffer length of the recvmsg system call is 0, a soft lockup problem occurred. watchdog: BUG: Soft lockup – CPU3 stuck for 27...