CVE-2026-53016

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.8
EG Score
7.8(high)
EPSS
3.1%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 30, 2026

Advisory Details (8)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd
generic

crypto: ccp - copy IV using skcipher ivsize - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4

Vendor Advisories for CVE-2026-53016(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 32× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 00:19 UTCEG score recompute
  2. 2026-07-07 00:19 UTCGHSA enrichment
  3. 2026-07-06 13:20 UTCEG score recompute
  4. 2026-07-06 13:20 UTCGHSA enrichment
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 01:56 UTCEG score recompute
  8. 2026-07-06 01:56 UTCGHSA enrichment
  9. 2026-07-05 14:57 UTCEG score recompute
  10. 2026-07-05 14:57 UTCGHSA enrichment
  11. 2026-07-05 03:58 UTCEG score recompute
  12. 2026-07-05 03:58 UTCGHSA enrichment
  13. 2026-07-04 16:56 UTCEG score recompute
  14. 2026-07-04 16:56 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 05:57 UTCEG score recompute
  17. 2026-07-04 05:57 UTCGHSA enrichment
  18. 2026-07-03 18:57 UTCEG score recompute
  19. 2026-07-03 18:57 UTCGHSA enrichment
  20. 2026-07-03 07:58 UTCEG score recompute
  21. 2026-07-03 07:58 UTCGHSA enrichment
  22. 2026-07-02 20:57 UTCEG score recompute
  23. 2026-07-02 20:57 UTCGHSA enrichment
  24. 2026-07-02 09:59 UTCEG score recompute
  25. 2026-07-02 09:58 UTCGHSA enrichment
Show 19 more
  1. 2026-07-01 22:59 UTCEG score recompute
  2. 2026-07-01 22:59 UTCGHSA enrichment
  3. 2026-07-01 12:00 UTCEG score recompute
  4. 2026-07-01 12:00 UTCGHSA enrichment
  5. 2026-07-01 01:01 UTCEG score recompute 7.80
  6. 2026-07-01 01:01 UTCGHSA enrichment
  7. 2026-06-30 23:22 UTCEPSS rescore
  8. 2026-06-29 14:06 UTCEPSS rescore
  9. 2026-06-29 14:06 UTCEPSS rescore
  10. 2026-06-28 14:07 UTCEPSS rescore
  11. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  12. 2026-06-28 04:56 UTCEPSS rescore
  13. 2026-06-28 04:56 UTCEPSS rescore
  14. 2026-06-27 21:41 UTCEG score recompute
  15. 2026-06-27 21:41 UTCGHSA enrichment
  16. 2026-06-27 03:08 UTCEPSS rescore
  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-24 18:21 UTCEG score recompute
  19. 2026-06-24 18:02 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-53016?
CVE-2026-53016 is a high vulnerability published on June 24, 2026. 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. ccpaescomplete() restores AESBLOCKSIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV,…
When was CVE-2026-53016 disclosed?
CVE-2026-53016 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53016 actively exploited?
CVE-2026-53016 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-53016?
CVE-2026-53016 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-53016?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53016, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-53016

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