CVE-2026-53016
Last modified
CVE-2026-53016 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.14, < 5.10.258 |
| Linux | Linux Kernel | >= 5.11, < 5.15.209 |
| Linux | Linux Kernel | >= 5.16, < 6.1.175 |
| Linux | Linux Kernel | >= 6.2, < 6.6.141 |
| Linux | Linux Kernel | >= 6.7, < 6.12.91 |
| Linux | Linux Kernel | >= 6.13, < 6.18.33 |
| Linux | Linux Kernel | >= 6.19, < 7.0.10 |
References
- https://access.redhat.com/errata/RHSA-2026:38491Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:39494Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-53016Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492269Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53016.jsonThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-53016?
How severe is CVE-2026-53016?
How do I fix CVE-2026-53016?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-53010In the Linux kernel, the following vulnerability has been re…9.8
- CVE-2026-53011In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-53012In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53013In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53014In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53015In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53017In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53018In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-53019In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2026-5302CORS misconfiguration in CoolerControl/coolercontrold <4.0.0…8.1
- CVE-2026-53020In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-53021In the Linux kernel, the following vulnerability has been re…5.5
Are you affected by CVE-2026-53016?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST