How severe is CVE-2022-27387?

CVE-2022-27387 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-27387 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27387?

CVE-2022-27387 primarily affects Mariadb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-27387?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-27387 published?

CVE-2022-27387 was published on 2022-04-12 and last updated on 2026-06-17.

CVE-2022-27387

CVE-2022-27387 is a high-severity vulnerability in Mariadb with a CVSS 3.x base score of 7.5. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Mariadb
Published: 2022-04-12
Last modified: 2026-06-17

Description

MariaDB Server v10.7 and below was discovered to contain a global buffer overflow in the component decimal_bin_size, which is exploited via specially crafted SQL statements.

Frequently asked questions

What is CVE-2022-27387?: MariaDB Server v10.7 and below was discovered to contain a global buffer overflow in the component decimal_bin_size, which is exploited via specially crafted SQL statements.
How severe is CVE-2022-27387?: CVE-2022-27387 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-27387 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27387?: CVE-2022-27387 primarily affects Mariadb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-27387?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-27387 published?: CVE-2022-27387 was published on 2022-04-12 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

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