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VulnerabilityPublished Updated

CVE-2025-21523: Incorrect Permissions

Source GCVE Database

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Authoritative record:CVE-2025-21523· Medium 4.9

Not known to be exploited · CVSS 4.9 Medium.

Data as of 30 Oct 2026, 01:02 UTC

CVSS 3.1 base score
4.9Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (oracle)CVSS 3.14.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jan 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Mysqlmysql/mysql-serverpkg:deb/mysql/mysql-serverOther threatsAffected
  • <=8.0.40
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle has released patches for this vulnerability as part of the January 2025 Critical Patch Update. Users should apply the official Oracle patches without delay to remediate this issue. Oracle strongly recommends running actively-supported versions and promptly applying Critical Patch Updates to mitigate exploitation risks.

Description

A vulnerability in Oracle MySQL Server's InnoDB component affects multiple versions including 8.0.40 and prior, 8.4.3 and prior, and 9.1.0 and prior. This flaw allows a high-privileged attacker with network access to cause a denial of service by hanging or crashing the MySQL Server. The vulnerability has a CVSS 3.1 base score of 4.9, indicating a medium severity impact focused on availability.

References

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