CVE-2016-7440

5.5 MEDIUM 0.3% exploit odds Fix listed

What it is

The C software implementation of AES Encryption and Decryption in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover AES keys by leveraging cache-bank timing differences.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2016-12-13 16:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:53 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.3% in the next 30 days (EPSS).
Severity: 5.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2016-12-13 16:59 UTC
Last modified: 2026-06-17 00:53 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Record status: Modified

Affected

Mariadb < 5.5.53
Mariadb < 10.0.28
Mariadb < 10.1.19
Oracle MySQL ≤ 5.5.52
Oracle MySQL ≤ 5.6.33
Oracle MySQL ≤ 5.7.15
Wolfssl < 3.9.10
Debian Linux 8.0

Attack profile CVSS 3.1 · 5.5

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2016-7440.md and follow it. Check whether this project is affected by CVE-2016-7440. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record