CVE-2026-68451

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA ECC private key requests cca_ecc2protkey() derives the copy length for the CPRB parameter block directly from the length field in the key token. Reject the request early if the token length exceeds the available space in the parameter block.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-120

Published

2026-08-13

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

References

• https://git.kernel.org/stable/c/013a4484f061a2b41f052e25c0015203287e63f1
• https://git.kernel.org/stable/c/447a37a6bef11bfd3645069e380460b11386e2b9
• https://git.kernel.org/stable/c/7dc306ff7c4d951582adaae65e0aee9fb4968dbe
• https://git.kernel.org/stable/c/8fa3e9435a13c335efb63fb4f4e77531a0031159
• https://git.kernel.org/stable/c/a9ae0f6dd45c3ccc1d69363f7aea8af179122730

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