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4.9
CVE-2026-22005EXPLOITEDPATCHED
oracle · mysql_server

CVE-2026-22005: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are a

Description

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.45, 8.4.0-8.4.8 and 9.0.0-9.6.0. Easily exploitable vulnerability allows high 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 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Affected Products

VendorProductVersions
oraclemysql_server8.0.0, 8.4.0, 9.0.0

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
oraclemysqlcert_advisory90%

References

  • https://www.oracle.com/security-alerts/cpuapr2026.html(vendor-advisory)

Related News (6 articles)

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Tier A
Microsoft MSRC18d ago
CVE-2026-22005
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Tier B
BSI Advisories19d ago
[NEU] [hoch] Oracle MySQL: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB19d ago
CVE-2026-22005 | Oracle MySQL Server up to 8.0.45/8.4.8/9.6.0 Optimizer denial of service
→ No new info (linked only)
Tier B
CERT-FR19d ago
Multiples vulnérabilités dans Oracle MySQL (22 avril 2026)
→ No new info (linked only)
CVSS 3.14.9 MEDIUM
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
https://www.oracle.com/security-alerts/cpuapr2026.html
PublishedApr 21, 2026
Last enriched19d agov2
Tags
denial of service
Trending Score56
Source articles6
Independent4
Info Completeness8/14
Missing: epss, cwe, kev, exploit, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 21, 2026
Discovered by ZDM
Apr 21, 2026
Updated: description, affectedVersions, severity, activelyExploited, tags
Apr 22, 2026
Actively Exploited
Apr 22, 2026
Patch Available
Apr 22, 2026

Version History

v2
Last enriched 19d ago
v2Tier C19d ago

Updated description with new details, changed severity to HIGH, and noted that the vulnerability is actively exploited.

descriptionaffectedVersionsseverityactivelyExploitedtags
via VulDB
v120d ago

Initial creation