HOMEVULNERABILITIESCVE-2016-6225
MEDIUM

CVE-2016-6225

CWE-326Published: March 23, 2017· Updated: Jun 17, 2026

5.9
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2016-6225 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

Fedora1 product(s)
fedora
openSUSE1 product(s)
leap
percona1 product(s)
xtrabackup
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugs.launchpad.net/percona-xtrabackup/+bug/1643949
PATCHhttps://github.com/percona/percona-xtrabackup/pull/266
PATCHhttps://github.com/percona/percona-xtrabackup/pull/267
PATCHhttps://bugs.launchpad.net/percona-xtrabackup/+bug/1643949
PATCHhttps://github.com/percona/percona-xtrabackup/pull/266
PATCHhttps://github.com/percona/percona-xtrabackup/pull/267
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html
ADVISORYhttps://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html
ADVISORYhttp://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html
ADVISORYhttps://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/

All References (16)

→
http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.htmlThird Party Advisory
→
https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949Issue Tracking · Patch · Third Party Advisory
→
https://github.com/percona/percona-xtrabackup/pull/266Issue Tracking · Patch · Third Party Advisory
→
https://github.com/percona/percona-xtrabackup/pull/267Issue Tracking · Patch · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/
→
https://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/Vendor Advisory
→
http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.htmlThird Party Advisory
→
http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.htmlThird Party Advisory
→
https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949Issue Tracking · Patch · Third Party Advisory
→
https://github.com/percona/percona-xtrabackup/pull/266Issue Tracking · Patch · Third Party Advisory
→
https://github.com/percona/percona-xtrabackup/pull/267Issue Tracking · Patch · Third Party Advisory
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/

Quick Facts

CVE IDCVE-2016-6225
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-326
CISA KEVNo
Affected3 vendor(s)
PublishedMar 23, 2017

Related CVEs (CWE-326)

CVE-2020-6966
10.0
CVE-2026-44523
10.0
CVE-2014-9199
10.0
CVE-2020-14517
9.8
CVE-2021-42216
9.8
CVE-2022-30285
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2016-6225 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2016-6225·NVD