CVE-2025-38408
In the Linux kernel, the following vulnerability has been resolved: genirq/irq_sim: Initialize work context pointers properly Initialize `
CVSS
7.8
High
EPSS
0.2%
p6
KEV
—
Exploit Today
2
0-100
Published: Jul 25, 2025 · Last modified: Jul 30, 2026 · CWE-476
0.2%EPSS · 30 days0.2%
2026-07-052026-08-01
In the Linux kernel, the following vulnerability has been resolved: genirq/irq_sim: Initialize work context pointers properly Initialize `ops` member's pointers properly by using kzalloc() instead of kmalloc() when allocating the simulation work context. Otherwise the pointers contain random content leading to invalid dereferencing.
- git.kernel.orghttps://git.kernel.org/stable/c/186df821de0f34490ed5fc0861243748b2483861
- git.kernel.orghttps://git.kernel.org/stable/c/19bd7597858dd15802c1d99fcc38e528f469080a
- git.kernel.orghttps://git.kernel.org/stable/c/7f73d1def72532bac4d55ea8838f457a6bed955c
- git.kernel.orghttps://git.kernel.org/stable/c/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819
- git.kernel.orghttps://git.kernel.org/stable/c/c71aa4bb528ae6f8fd7577a0a39e5a03c60b04fb
- git.kernel.orghttps://git.kernel.org/stable/c/ec3656a8cb428d763def32bc2fa695f94be23629
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-673047.5 HIG—
——0FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard device control request cleanup when reader-state decoding fails. Attackers can send malformed smartcard IRP requests with non-zero cReaders and truncated reader-state data to crash the process via null pointer access in free_reader_states functions.2dCVE-2026-672887.5 HIG—
——0FreeRDP before 3.29.0 contains a null pointer dereference vulnerability in smartcard cache request decoders that accept NULL NDR pointers for LookupName in SCARD_IOCTL_READCACHEA and SCARD_IOCTL_WRITECACHEA operations. When smartcard emulation is enabled, attackers can send crafted smartcard cache requests with NULL lookup-name pointers to trigger strlen() on a null pointer, causing client process termination.2dCVE-2026-180647.5 HIG26.5%
——8An incomplete fix for CVE-2026-15352 in the NASA core Flight System
(cFS) Health and Safety (HS) application leaves a separate NULL pointer
dereference reachable in versions through 7.0.1. An attacker who can
trigger the affected command under specific conditions could cause the
HS application to crash, resulting in a denial-of-service condition and
processor reset.3dCVE-2026-581617.5 HIG36.3%
——11Apache Traffic Server can crash from null dereferences and dangling references in TLS and SNI handling.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.4dCVE-2026-671847.5 HIG35.5%
——11TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string. The HttpParser::execute() function fails to allocate the Url object when version parsing fails, leaving the url pointer NULL, and buildResponse() subsequently dereferences this NULL pointer without checking the valid_requ flag, producing a SIGSEGV that terminates the worker process and, when repeated across all workers, takes the server permanently offline until manually restarted.4dCVE-2026-667496.5 MED23.5%
——7Let's Chat 0.4.0 through 0.4.8 contains a null dereference vulnerability that allows authenticated attackers to crash the server by supplying a valid 24-character hex string room parameter that matches no document in the database. Attackers can send a crafted GET /messages request causing an uncaught TypeError in an asynchronous Mongoose callback that terminates the Node.js server process, with the same defect reachable through multiple code paths including the socket.io interface.4d