How severe is CVE-2022-31622?

CVE-2022-31622 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-31622 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31622?

CVE-2022-31622 affects Mariadb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-31622?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-31622 published?

CVE-2022-31622 was published on 2022-05-25 and last updated on 2026-06-17.

CVE-2022-31622

CVE-2022-31622 is a medium-severity vulnerability in Mariadb with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-667.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-667
Affected product: Mariadb
Published: 2022-05-25
Last modified: 2026-06-17

Description

MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs (pthread_create returns a nonzero value) while executing the method create_worker_threads, the held lock is not released correctly, which allows local users to trigger a denial of service due to the deadlock. Note: The vendor argues this is just an improper locking bug and not a vulnerability with adverse effects.

Frequently asked questions

What is CVE-2022-31622?: MariaDB Server before 10.7 is vulnerable to Denial of Service. In extra/mariabackup/ds_compress.cc, when an error occurs (pthread_create returns a nonzero value) while executing the method create_worker_threads, the held lock is not released correctly, which allows local users to trigger a denial of service due to the deadlock. Note: The vendor argues this is just an improper locking bug and not a vulnerability with adverse effects.
How severe is CVE-2022-31622?: CVE-2022-31622 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-31622 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31622?: CVE-2022-31622 affects Mariadb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-31622?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-31622 published?: CVE-2022-31622 was published on 2022-05-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*

More vulnerabilities in Mariadb

CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2012-2750 — Critical (CVSS 10.0): Unspecified vulnerability in MySQL 5.5.x before 5.5.23 has unknown impact and attack vectors related to a "Security…
CVE-2026-44172 — Critical (CVSS 9.8): MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was…
CVE-2026-44170 — Critical (CVSS 9.8): MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before…
CVE-2023-26785 — Critical (CVSS 9.8): MariaDB v10.5 was discovered to contain a remote code execution (RCE) vulnerability via UDF Code in a Shared Object…
CVE-2016-9843 — Critical (CVSS 9.8): The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via…

All CVEs affecting Mariadb →

Other CWE-667 (Improper Locking) vulnerabilities

CVE-2020-12658 — Critical (CVSS 9.8): gssproxy (aka gss-proxy) before 0.8.3 does not unlock cond_mutex before pthread exit in gp_worker_main() in…
CVE-2019-5886 — Critical (CVSS 9.8): An issue was discovered in ShopXO 1.2.0. In the application\install\controller\Index.php file, there is no validation…
CVE-2026-43215 — High (CVSS 8.8): In the Linux kernel, the following vulnerability has been resolved: cifs: Fix locking usage for tcon fields We used…
CVE-2026-31629 — High (CVSS 8.8): In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: add missing return after LLCP_CLOSED…
CVE-2020-15674 — High (CVSS 8.8): Mozilla developers reported memory safety bugs present in Firefox 80. Some of these bugs showed evidence of memory…
CVE-2021-1622 — High (CVSS 8.6): A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband…

Browse all CWE-667 (Improper Locking) vulnerabilities →