CVE-2026-43425: linux
Vulnerability summary
CVE-2026-43425 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 40 · Related 40Timeline
- 08-05-2026PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: usb: image: mdc800: kill download URB on timeout mdc800_device_read() submits download_urb and waits for completion. If the timeout fires and the device has not responded, the function returns without killing the URB, leaving it active. A subsequent read() resubmits the same URB while it is still in-flight, triggering the WARN in usb_submit_urb(): "URB submitted while active" Check the return value of wait_event_timeout() and kill the URB if it indicates timeout, ensuring the URB is complete before its status is inspected or the URB is resubmitted. Similar to - commit 372c93131998 ("USB: yurex: fix control-URB timeout handling") - commit b98d5000c505 ("media: rc: iguanair: handle timeouts")
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
+0.04 pp
From 0.12% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9fa5a49760979ba016506fe292a431c8b83f043e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 15536f6c15f48037a1672cbdea53266d67861ff6 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9bf877cc67309b2a063b0087c3ad8585fb11cec3 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 155f471e38aa516f6c58c2ae03ca3dc222fa2fdb | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d4a400a6a4c4d49f77a04a3f401df5ae1a10657c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b7fed917f84e484e06c5e9926746d0b524e3a93e | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cc7398447810c9450c90d092efe9997569f8d96f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1be3b77de4eb89af8ae2fd6610546be778e25589 | 2.6.12
- linux_kernel≥ 2.6.12.1, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.167 | ≥ 6.2, < 6.6.130 | ≥ 6.7, < 6.12.78 | ≥ 6.13, < 6.18.19 | ≥ 6.19, < 6.19.9 | 2.6.12 | 2.6.12:rc2 | 2.6.12:rc3 | 2.6.12:rc4 | 2.6.12:rc5 | 2.6.12:rc6 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4
Debian1 product
- linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.10-1
3 vendors · 160 products