VulnerabilityModified

CVE-2016-7440

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.

MEDIUM 5.5EPSS 0.31%

Does this matter?

Lower severity and a low EPSS score (0.31%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.31% probability · 23th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Affected: mariadb/mariadb · oracle/mysql · wolfssl/wolfssl · debian/debian linux
Source: cve@mitre.org

EPSS trend

EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://www.debian.org/security/2016/dsa-3706Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch, Third Party Advisory
http://www.securityfocus.com/bid/93659Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037050Broken Link, Third Party Advisory, VDB Entry
https://mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/Third Party Advisory
https://wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.htmlVendor Advisory
http://www.debian.org/security/2016/dsa-3706Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlPatch, Third Party Advisory
http://www.securityfocus.com/bid/93659Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037050Broken Link, Third Party Advisory, VDB Entry
https://mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/Third Party Advisory
https://wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.htmlVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.