9.9

CVE-2026-92262: mariadb server

CVSS: 9.9v3.1CriticalAwaiting analysis
AliasesUBUNTU-CVE-2026-92262DEBIAN-CVE-2026-92262
Published 16-10-2026Last modified 16-10-2026
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Vulnerability summary

CVE-2026-92262 is a critical (CVSS 9.9) vulnerability in mariadb server. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.9/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.68%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-10-2026
    PublishedVulnerability first disclosed.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

17-10-202619-10-2026
EPSS score
0.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu5 products
  • mariadbAll versions (No fix recorded)
  • mariadb-10.0All versions (No fix recorded)
  • mariadb-10.1All versions (No fix recorded)
  • mariadb-10.3All versions (No fix recorded)
  • mariadb-10.6All versions (No fix recorded)
Debian1 product
  • mariadbAll versions (No fix recorded) | < 1:11.8.9+ds-1
Mariadb1 product
  • server≥ 10.6.1, < 10.6.28 | ≥ 10.11.1, < 10.11.19 | ≥ 11.4.1, < 11.4.13 | ≥ 11.8.1, < 11.8.9 | ≥ 12.3.1, < 12.3.3 | ≥ 13.0.1, < 13.0.2

3 vendors · 7 products

References

13 links
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