CVE-2026-63957: linux

CVSS: UnknownAwaiting analysis
AliasesUBUNTU-CVE-2026-63957DEBIAN-CVE-2026-63957
Published 19-07-2026Last modified 19-07-2026
Open JSON

Vulnerability summary

CVE-2026-63957 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.4% 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
0.22%
0%100%
Low · 0.00 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: safe_serial: fix memory corruption with small endpoint Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.22%

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, < e3a1d6eee25dc96b1d2db0ecd9d8741e92056476 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < c7336c0fba5c959249f3d793d33076b992ec3ee4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9b3145b3001fb24de1da72d1deb0bea70e5a078b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a550ed2117ca4709d38f713933ff924a83942e41 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f793b67d41e5fab719c5a90baa77cbd2fe259517 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 857b3cc73f91871ae4433f8b97c4670b78f8dc96 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 438061ed1ad85e6743e2dce826671772d81089ec | 2.6.12

3 vendors · 169 products

References

31 links
Show all 31 references