CVE-2022-31626

HIGHEPSS 99th pctl

7.5

CVSS v3

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.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

php7.4Debian

Fixed in:7.4.30-1+deb11u1CVE-2022-31626

This Debian release reached end-of-life on 2024-08-14.

libapache2-mod-php7.0Ubuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

libapache2-mod-php7.2Ubuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

libapache2-mod-php7.4Ubuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

libapache2-mod-php8.1Ubuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php7.0Ubuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.0-cgiUbuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.0-cliUbuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.0-fpmUbuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.0-mysqlUbuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.0-pgsqlUbuntu

Fixed in:7.0.33-0ubuntu0.16.04.16+esm4USN-5479-2

This Ubuntu release reached end-of-life on 2021-04-02.

php7.2Ubuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.2-cgiUbuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.2-cliUbuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.2-fpmUbuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.2-mysqlUbuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.2-pgsqlUbuntu

Fixed in:7.2.24-0ubuntu0.18.04.12USN-5479-1

This Ubuntu release reached end-of-life on 2023-05-31. Extended security maintenance is available until 2028-04-01.

php7.4Ubuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php7.4-cgiUbuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php7.4-cliUbuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php7.4-fpmUbuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php7.4-mysqlUbuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php7.4-pgsqlUbuntu

Fixed in:7.4.3-4ubuntu2.12USN-5479-1

This Ubuntu release reached end-of-life on 2025-05-31. Extended security maintenance is available until 2030-04-02.

php8.1Ubuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php8.1-cgiUbuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php8.1-cliUbuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php8.1-fpmUbuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php8.1-mysqlUbuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

php8.1-pgsqlUbuntu

Fixed in:8.1.2-1ubuntu2.1USN-5479-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

58.12%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch1

bugs.php.net

Third-Party Advisory4

Other references2

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	100%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	92%	-	Fix

Common questions

How do I fix CVE-2022-31626?

Published advisories record a fix for 29 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-31626 being actively exploited?

Not that we know of. CVE-2022-31626 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 58.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2022-31626?

CVE-2022-31626 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-31626 affect?

Published advisories record a fix for php7.4 (Debian), libapache2-mod-php7.0 (Ubuntu), libapache2-mod-php7.2 (Ubuntu), libapache2-mod-php7.4 (Ubuntu), and 25 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2022-31626

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-17.