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CVE-2026-53016

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.

Published Jun 24, 2026CWE-787EPSS 0.14%

Overview

CVE-2026-53016 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

crypto: ccp - copy IV using skcipher ivsize

AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.

ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV

buffer while RFC3686 skciphers expose an 8-byte IV, so the restore

overruns the provided buffer.

Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4Refgit.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bdRefgit.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3Refgit.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4Refgit.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9aRefgit.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9Refgit.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2Refgit.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6aRefaccess.redhat.com/errata/RHSA-2026:38491Refaccess.redhat.com/errata/RHSA-2026:39494

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53016?

CVE-2026-53016 is a high-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-53016?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53016?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53016?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53016 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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