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CVE-2025-21519 is a difficult-to-exploit vulnerability in the Security: Privileges component of Oracle MySQL Server. It affects supported MySQL Server versions 8.0.40 and earlier, 8.4.3 and earlier, and 9.1.0 and earlier. A high-privileged attacker with network access through multiple supported protocols can exploit the flaw to compromise availability of the MySQL Server service.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Actively exploited local privilege escalation vulnerability in Desktop Window Manager caused by a type confusion issue, allowing elevation to SYSTEM.
Unspecified MySQL privileges vulnerability addressed in the January 2025 CPU.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.