CVE-2025-38157: debian debian_linux Out-of-bounds Write
Vulnerability summary
CVE-2025-38157 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 54 · Related 49Timeline
- 03-07-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k_htc: Abort software beacon handling if disabled A malicious USB device can send a WMI_SWBA_EVENTID event from an ath9k_htc-managed device before beaconing has been enabled. This causes a device-by-zero error in the driver, leading to either a crash or an out of bounds read. Prevent this by aborting the handling in ath9k_htc_swba() if beacons are not enabled.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
+0.02 pp
From 0.17% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu145 products
- linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.12.35-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < e5ce9df1d68094d37360dbd9b09289d42fa21e54 | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 0281c19074976ec48f0078d50530b406ddae75bc | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 7ee3fb6258da8c890a51b514f60d7570dc703605 | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 40471b23147c86ea3ed97faee79937c618250bd0 | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 5482ef9875eaa43f0435e14570e1193823de857e | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < ee5ee646385f5846dcbc881389f3c44a197c402a | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < 5a85c21f812e02cb00ca07007d88acdd42d08c46 | ≥ 832f6a18fc2aead14954c081ece03b7a5b425f81, < ac4e317a95a1092b5da5b9918b7118759342641c | 3.0
- linux_kernel≥ 3.0, < 5.4.295 | ≥ 5.5, < 5.10.239 | ≥ 5.11, < 5.15.186 | ≥ 5.16, < 6.1.142 | ≥ 6.2, < 6.6.94 | ≥ 6.7, < 6.12.34 | ≥ 6.13, < 6.15.3
3 vendors · 149 products
References
47 links- lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory