Answer in brief
CVE-2025-38693 records a Medium severity (CVSS 5.5) vulnerability in media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=713d54a8bd812229410a1902cd9b332a2a27af9f <7a41ecfc3415ebe3b4c44f96b3337691dcf431a3 || >=713d54a8bd812229410a1902cd9b332a2a27af9f <b3d77a3fc71c084575d3df4ec6544b3fb6ce587d || >=713d54a8bd812229410a1902cd9b332a2a27af9f <17b30e5ded062bd74f8ca6f317e1d415a8680665 || >=713d54a8bd812229410a1902cd9b332a2a27af9f <454a443eaa792c8865c861a282fe6d4f596abc3a || >=713d54a8bd812229410a1902cd9b332a2a27af9f <6bbaec6a036940e22318f0454b50b8000845ab59 || >=713d54a8bd812229410a1902cd9b332a2a27af9f <f98132a59ccc59a8b97987363bc99c8968934756 || >=713d54a8bd812229410a1902cd9b332a2a27af9f <99690a494d91a0dc86cebd628da4c62c40552bcb || >=713d54a8bd812229410a1902cd9b332a2a27af9f <39b06b93f24dff923c4183d564ed28c039150554 || >=713d54a8bd812229410a1902cd9b332a2a27af9f <ed0234c8458b3149f15e496b48a1c9874dd24a1b | 7a41ecfc3415ebe3b4c44f96b3337691dcf431a3, b3d77a3fc71c084575d3df4ec6544b3fb6ce587d, 17b30e5ded062bd74f8ca6f317e1d415a8680665, 454a443eaa792c8865c861a282fe6d4f596abc3a, 6bbaec6a036940e22318f0454b50b8000845ab59, f98132a59ccc59a8b97987363bc99c8968934756, 99690a494d91a0dc86cebd628da4c62c40552bcb, 39b06b93f24dff923c4183d564ed28c039150554, ed0234c8458b3149f15e496b48a1c9874dd24a1b |
| Linux/Linuxgeneric | 2.6.39 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
Published upstream
Sep 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 28, 2026
In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Quoted source text, attributed separately from HOL analysis.