CVE-2026-53016 - Vulnerability Details

- crypto: ccp - copy IV using skcipher ivsize

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.

Published: 2026-06-24

Score: 7.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< 939061b2d0f7f15114e34b4ce878ef50ff4089c3
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< 798d409a8949f3f495f238549b86de2886b129bd
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< dfb2cf434829819268fe50f41542aad318ad62b2
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< eecee15e263ccb8cd77170a56ab6c969cb54dd6a
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< bb01d8f1f385bc9034ca114d3508c7fdea24fc9a
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< df9784bb5b637ac80f4a2768a58ca9a50bef28a9
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< 227c1e1d9e2aa4cfc65ba446d5690da1f546cda4
`2b789435d7f36ed918d92db647f3a2f3fec9bb1f`	affected	< a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4

Linux

affected

Version	Status	Constraints
`3.14`	affected	—
`0`	unaffected	< 3.14
`5.10.258`	unaffected	≤ 5.10.*
`5.15.209`	unaffected	≤ 5.15.*
`6.1.175`	unaffected	≤ 6.1.*
`6.6.141`	unaffected	≤ 6.6.*
`6.12.91`	unaffected	≤ 6.12.*
`6.18.33`	unaffected	≤ 6.18.*
`7.0.10`	unaffected	≤ 7.0.*
`7.1`	unaffected	≤ *

No data.

Vendor Product Confidence Versions

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,939061b2d0f7f15114e34b4ce878ef50ff4089c3)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,798d409a8949f3f495f238549b86de2886b129bd)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,dfb2cf434829819268fe50f41542aad318ad62b2)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,eecee15e263ccb8cd77170a56ab6c969cb54dd6a)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,bb01d8f1f385bc9034ca114d3508c7fdea24fc9a)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,df9784bb5b637ac80f4a2768a58ca9a50bef28a9)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,227c1e1d9e2aa4cfc65ba446d5690da1f546cda4)`	affected	code_commit	—
`[2b789435d7f36ed918d92db647f3a2f3fec9bb1f,a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4)`	affected	code_commit	—

Linux

Linux Kernel

99%

Version	Status	Scheme	Platform
`3.14`	affected	generic	—
`[0,3.14)`	unaffected	generic	—
`[5.10.258,5.11.0)`	unaffected	generic	—
`[5.15.209,5.16.0)`	unaffected	generic	—
`[6.1.175,6.2.0)`	unaffected	generic	—
`[6.6.141,6.7.0)`	unaffected	generic	—
`[6.12.91,6.13.0)`	unaffected	generic	—
`[6.18.33,6.19.0)`	unaffected	generic	—
`[7.0.10,7.1.0)`	unaffected	generic	—
`[7.1,*]`	unaffected	generic	—

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00129.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4
https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd
https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3
https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4
https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a
https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9
https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2
https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a
https://lore.kernel.org/linux-cve-announce/2026062451-CVE-2026-53016-90ac@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-53016
https://www.cve.org/CVERecord?id=CVE-2026-53016

History

Sun, 28 Jun 2026 12:45:00 +0000

Type	Values Removed	Values Added
Weaknesses	CWE-120

Sun, 28 Jun 2026 08:00:00 +0000

Type	Values Removed	Values Added
Metrics	cvssV3_1 `{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}`	cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}`

Fri, 26 Jun 2026 00:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-805
References		https://lore.kernel.org/linux-cve-announce/2026062451-CVE-2026-53016-90ac@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2026-53016 https://www.cve.org/CVERecord?id=CVE-2026-53016
Metrics	threat_severity `None`	cvssV3_1 `{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}` threat_severity `Important`

Wed, 24 Jun 2026 19:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-120

Wed, 24 Jun 2026 17:15:00 +0000

Type	Values Removed	Values Added
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.
Title		crypto: ccp - copy IV using skcipher ivsize
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/227c1e1d9e2aa4cfc65ba446d5690da1f546cda4 https://git.kernel.org/stable/c/798d409a8949f3f495f238549b86de2886b129bd https://git.kernel.org/stable/c/939061b2d0f7f15114e34b4ce878ef50ff4089c3 https://git.kernel.org/stable/c/a7a1f3cdd64d8a165d9b8c9e9ad7fb46ac19dfc4 https://git.kernel.org/stable/c/bb01d8f1f385bc9034ca114d3508c7fdea24fc9a https://git.kernel.org/stable/c/df9784bb5b637ac80f4a2768a58ca9a50bef28a9 https://git.kernel.org/stable/c/dfb2cf434829819268fe50f41542aad318ad62b2 https://git.kernel.org/stable/c/eecee15e263ccb8cd77170a56ab6c969cb54dd6a

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-06-24T16:29:26.272Z

Updated: 2026-06-28T06:38:04.851Z

Reserved: 2026-06-09T07:44:35.378Z

Link: CVE-2026-53016

Vulnrichment

No data.

NVD

No data.

Redhat

Severity : Important

Publid Date: 2026-06-24T00:00:00Z

Links: CVE-2026-53016 - Bugzilla

OpenCVE Enrichment

Updated: 2026-06-28T14:45:17Z

Weaknesses

CWE-805

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Subscriptions

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