CVE-2022-31626

Name: CVE-2022-31626
Creator: NVD / NIST
Published: 2022-06-16T06:15:08.807+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 58.38%

Last modified Jun 17, 2026

CVE-2022-31626 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote code execution vulnerability.. EPSS estimates a 58.38% chance of exploitation in the next 30 days.

Description

In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, when pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply host to connect to and the password for the connection, password of excessive length can trigger a buffer overflow in PHP, which can lead to a remote code execution vulnerability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

58.38%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Php	Php	>= 7.4.0, < 7.4.30
Php	Php	>= 8.0.0, < 8.0.20
Php	Php	>= 8.1.0, < 8.1.7
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://bugs.php.net/bug.php?id=81719Exploit, Issue Tracking, Mailing List, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00030.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T4MMEEZYYAEHPQMZDFN44PHORJWJFZQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZZTZQKRGEYJT5UB4FGG3MOE72SQUHSL4/
https://security.gentoo.org/glsa/202209-20Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0005/Third Party Advisory
https://www.debian.org/security/2022/dsa-5179Third Party Advisory
https://bugs.php.net/bug.php?id=81719Exploit, Issue Tracking, Mailing List, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00030.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T4MMEEZYYAEHPQMZDFN44PHORJWJFZQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZZTZQKRGEYJT5UB4FGG3MOE72SQUHSL4/
https://security.gentoo.org/glsa/202209-20Third Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0005/Third Party Advisory
https://www.debian.org/security/2022/dsa-5179Third Party Advisory

Timeline

Published: Jun 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31626?

How severe is CVE-2022-31626?

CVE-2022-31626 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 58.38% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31626?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31626?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST