CVE-2025-21522: oracle corporation mysql server
Vulnerability summary
CVE-2025-21522 is a medium (CVSS 6.5) vulnerability in oracle corporation mysql server. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3 · Related 1Timeline
- 21-01-2025PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser). Supported versions that are affected are 8.0.40 and prior, 8.4.3 and prior and 9.1.0 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.04%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
0.00 pp
From 1.04% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu5 products
- mysql-5.5All versions (No fix recorded)
- mysql-5.7All versions (No fix recorded)
- mysql-8.0< 8.0.41-0ubuntu0.20.04.1 | < 8.0.41-0ubuntu0.22.04.1 | < 8.0.41-0ubuntu0.24.04.1
- percona-server-5.6All versions (No fix recorded)
- percona-xtradb-cluster-5.6All versions (No fix recorded)
Oracle1 product
- mysql_server≥ 8.0.0, ≤ 8.0.40 | ≥ 8.4.0, ≤ 8.4.3 | ≥ 9.0.0, ≤ 9.1.0
Oracle corporation1 product
- mysql server≤ 8.0.40 | ≤ 8.4.3 | ≤ 9.1.0
3 vendors · 7 products