CVE-2016-6225

What it is

xbcrypt in Percona XtraBackup before 2.3.6 and 2.4.x before 2.4.5 does not properly set the initialization vector (IV) for encryption, which makes it easier for context-dependent attackers to obtain sensitive information from encrypted backup files via a Chosen-Plaintext attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-6394.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data exposure.

Exploit odds

1.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2017-03-23 16:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:50 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.1% in the next 30 days (EPSS).
• Severity: 5.9 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2017-03-23 16:59 UTC

Last modified

2026-06-17 00:50 UTC

Exploit probability

1.1% · EPSS, next 30 days

Weakness

CWE-326 · Inadequate encryption strength

Record status

Modified

Affected

• Percona Xtrabackup ≤ 2.3.5
• Percona Xtrabackup 2.4.0
• Percona Xtrabackup 2.4.1
• Percona Xtrabackup 2.4.2
• Percona Xtrabackup 2.4.3
• Percona Xtrabackup 2.4.4
• Opensuse Leap 42.1
• Opensuse Leap 42.2

Attack profile CVSS 3.0 · 5.9

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

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