CVE-2025-39876
In the Linux kernel, the following vulnerability has been resolved: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() Th
CVSS
5.5
Medium
EPSS
0.2%
p4
KEV
—
Exploit Today
1
0-100
Published: Sep 23, 2025 · Last modified: Oct 19, 2026 · CWE-476
0.1%EPSS · 30 days0.2%
2026-10-022026-10-30
In the Linux kernel, the following vulnerability has been resolved: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() The function of_phy_find_device may return NULL, so we need to take care before dereferencing phy_dev.
- git.kernel.orghttps://git.kernel.org/stable/c/03e79de4608bdd48ad6eec272e196124cefaf798
- git.kernel.orghttps://git.kernel.org/stable/c/20a3433d31c2d2bf70ab0abec75f3136b42ae66c
- git.kernel.orghttps://git.kernel.org/stable/c/4fe53aaa4271a72fe5fe3e88a45ce01646b68dc5
- git.kernel.orghttps://git.kernel.org/stable/c/5f1bb554a131e59b28482abad21f691390651752
- git.kernel.orghttps://git.kernel.org/stable/c/8c60d12bba14dc655d2d948b1dbf390b3ae39cb8
- git.kernel.orghttps://git.kernel.org/stable/c/93a699d6e92cfdfa9eb9dbb8c653b5322542ca4f
- git.kernel.orghttps://git.kernel.org/stable/c/eb148d85e126c47d65be34f2a465d69432ca5541
- git.kernel.orghttps://git.kernel.org/stable/c/fe78891f296ac05bf4e5295c9829ef822f3c32e7
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-629667.5 HIG—
——0ESPAsyncWebServer is an asynchronous HTTP and WebSocket server library for ESP32, ESP8266, RP2040 and RP2350. Prior to version 3.11.2, the multipart parser in `src/WebRequest.cpp` frees `_itemBuffer` and sets it to NULL when `BOUNDARY_OR_DATA` matches the closing boundary of a file part, before confirming the following terminator, while leaving `_itemIsFile` true. If the next byte is neither the final closing dashes nor a clean CRLF, the `DASH3_OR_RETURN2` or `EXPECT_FEED2` rewind branch re-injects provisionally consumed bytes through `itemWriteByte`. Because `_itemIsFile` remains true, `_itemBuffer`[`_itemBufferIndex`++] writes through a null pointer. On ESP32 this causes a `StoreProhibited` exception, panic and device reboot, producing remote denial of service. A route with a non-trivial body/upload handler, such as a file-upload or web-OTA endpoint, must be present. This issue is fixed in version 3.11.2.16hCVE-2026-599936.5 MED—
——0Picotls is a TLS protocol library that allows users select different crypto backends based on their use case. In affected revisions through 44bc503, when picotls is used as a `client-side TLS stack`, a peer can send a `HelloRetryRequest` followed by a `spoofed Hello message` that causes a null-pointer dereference. This can terminate the consuming process, including a process performing other work, resulting in denial of service. This issue is fixed in commit a06ca41.16hCVE-2026-62298——
——0mouse07410/asn1c is an ASN.1 compiler. Prior to 1.2.5, `OPEN TYPE` decoding can dereference an unallocated member pointer and crash the consuming program. `OPEN_TYPE_aper_get` in `OPEN_TYPE_aper.c`, `OPEN_TYPE_ber_get` in `OPEN_TYPE_ber.c`, `OPEN_TYPE_oer_get` in `OPEN_TYPE_oer.c`, and `OPEN_TYPE_uper_get` in `OPEN_TYPE_uper.c` share the pattern: a conditional null check on `*memb_ptr2` resets presence only when the member exists, but execution then unconditionally computes an inner value from that pointer and a member offset. If the `OPEN TYPE` member has not been allocated, the null-pointer arithmetic and subsequent read cause a segmentation fault. The advisory demonstrates UPER and APER crashes for `E2connectionUpdateAcknowledge`, notes that `E2AP` uses APER, and provides a BER reproducer; OER is also explicitly identified as affected. This issue is fixed in version 1.2.5.14hCVE-2026-1200465.3 MED—
——0Nezha 2.0.0 before 2.4.0 contains a NULL pointer dereference vulnerability in ServiceSentinel.loadTodayStats that allows authenticated users to crash the dashboard by deleting a service. Attackers can delete their own service via POST /api/v1/batch-delete/service, leaving orphaned service_histories rows that crash the non-TSDB dashboard on its next startup until removed manually.18hCVE-2026-1198426.5 MED—
——0A flaw was found in GStreamer's gst-plugins-base MicroDVD subtitle parser. When processing a specially crafted subtitle file, the parser may dereference a NULL pointer, causing the application to crash when a user opens or plays media with a malformed MicroDVD (.sub) subtitle file.14hCVE-2026-1197285.5 MED—
——0A flaw was found in the H.264 video parser in gst-plugins-bad. When processing a specially crafted H.264 video file with malformed Multiview (MVC) Sequence Parameter Set data, the parser can dereference a NULL pointer during the cleanup of partially allocated internal structures after a parse failure. This can cause the application using GStreamer to crash, resulting in a denial of service.17h