CVE-2026-63897: linux

CVSS: UnknownAwaiting analysis
AliasesUBUNTU-CVE-2026-63897DEBIAN-CVE-2026-63897
Published 19-07-2026Last modified 19-07-2026
Open JSON

Vulnerability summary

CVE-2026-63897 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.5% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.23%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 32 · Related 32
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix missing interrupt-in transfer sanity check Add the missing sanity check on the size of interrupt-in transfers to avoid parsing stale or uninitialised slab data (and leaking it to user space).

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

+0.01 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu167 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-146.146 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1066.69 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.176-1 | < 6.12.94-1 | < 7.0.12-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 82b48d70bced1ec8e5f676d1fd5eccc7a44dc418 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8b93ee5baeef6efabee2c3381907733ad2dbc883 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a093f3e0c03d25a86d747a655d4b9322ffb2ed87 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 70bb9a2661d34b93a9b83cf83e2b76289a712ef0 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 631b8b7c456567f7a8d26f6fc354c8dd9cc9f832 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f06bcaba29707f060706483b2020d3cafbe98f9f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ed260b56bc9fc878e5dcbb866eab8af0688e0e67 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 245aba83e3c288e176ed037a1f6b618b09e92ed8 | 2.6.12

3 vendors · 169 products

References

31 links
Show all 31 references