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CVE-2026-92262

CRITICAL · CVSS 9.9 · Analyzed

Published: 2026-10-16 · Updated: 2026-10-21 · Source: NVD

Stored catalog record

Source record retrieved 2026-10-28T10:23:04.478298+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.

Vulnerability overview

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the #mysql50# bypass prefix is affected because it allows the #mysql50# prefix to bypass normal table-name filesystem encoding. An attacker can trigger the issue with a table name using the #mysql50# prefix, then use a #mysql50# table name to access files under their legacy unencoded name and cause crashes, data corruption, data exfiltration, or remote code execution. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Patch review priority

Critical technical severity

  • CVSS is at least 9.0; exploitation is not established by severity alone.

FIRST EPSS: 1.45% · percentile 73.2 · score date 2026-10-27.

EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗

Severity and scoring

CVSS score
9.9 · CRITICAL
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-706

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

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

    From (inclusive): 10.6.1

    Before (exclusive): 10.6.28

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

    From (inclusive): 10.11.1

    Before (exclusive): 10.11.19

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

    From (inclusive): 11.4.1

    Before (exclusive): 11.4.13

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

    From (inclusive): 11.8.1

    Before (exclusive): 11.8.9

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

    From (inclusive): 12.3.1

    Before (exclusive): 12.3.3

  • cpe:2.3:a:mariadb:mariadb:13.0.1:*:*:*:*:*:*:*

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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