CVE-2026-64342: linux Use After Free
CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-64342DEBIAN-CVE-2026-64342
Published 25-07-2026Last modified 17-08-2026
Vulnerability summary
CVE-2026-64342 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 32 · Related 32OPENSUSE-SU-2026:11476-1OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1SUSE-SU-2026:23528-1SUSE-SU-2026:23529-1SUSE-SU-2026:23881-1SUSE-SU-2026:23887-1SUSE-SU-2026:23897-1SUSE-SU-2026:23902-1SUSE-SU-2026:4120-1SUSE-SU-2026:4254-1SUSE-SU-2026:4687-1USN-8726-1USN-8726-2USN-8726-3USN-8726-4USN-8727-1USN-8728-1USN-8728-2USN-8728-3USN-8760-1USN-8760-2USN-8800-1USN-8875-1USN-8875-2USN-8876-1USN-8877-1USN-8878-1USN-8879-1USN-8917-1USN-8918-1
Timeline
- 25-07-2026PublishedVulnerability first disclosed.
- 17-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not stopped on close() and therefore need to be stopped unconditionally on disconnect() to avoid use-after-free in the completion handler.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- 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
0.13%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
0.00 pp
From 0.13% on 21-09-2026
21-09-202621-10-2026
EPSS score0.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu169 products
- linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-31.31
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1012.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.180-1 | < 6.12.96-1 | < 7.1.4-1
- linux-6.12< 6.12.100-1~deb12u1
Linux2 products
- linux≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < d058d377291567b72aea33b017215cbfb383b0ad | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < a7bbe946ca3a6eeb6f364d5e84b05e02c7c0d595 | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < 97ad9337127be04ca0b027c2b01e69302353f404 | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < 164398601a7f160bc3df1efa454f983302cef03f | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < f328b0e9a0dbd162f5db1b83026b689f2fea2241 | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < b748f97aff339e7f08dca9cf38a05b980fb66fea | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < e4596816984efc537e7c04c1af0c639394f967f7 | ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < bc0e4f16c44e50daa0b1ea729934baa3b4815dee | 2.6.21
- linux_kernel≥ 2.6.21.1, < 5.10.261 | ≥ 5.11, < 5.15.212 | ≥ 5.16, < 6.1.178 | ≥ 6.2, < 6.6.145 | ≥ 6.7, < 6.12.96 | ≥ 6.13, < 6.18.39 | ≥ 6.19, < 7.1.4 | 2.6.21 | 2.6.21:rc2 | 2.6.21:rc3 | 2.6.21:rc4 | 2.6.21:rc5 | 2.6.21:rc6 | 2.6.21:rc7 | 7.2:rc1 | 7.2:rc2
3 vendors · 173 products
