CVE-2024-20967: Oracle MySQL Server · Easily exploitable vulnerability allows high privileged attacker with network access via multiple
Affects Oracle MySQL ServerSource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium : upgrade to 8.2.1 or 8.0.36 when convenient.
Data as of 26 Oct 2026, 07:57 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 56% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8.2.1, 8.0.36
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-26.
What to do
Upgrade mysql/mysql-server to 8.2.1 or 8.0.36.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mysqlmysql/mysql-serverpkg:deb/mysql/mysql-serverOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
1. 2. Restrict network access to MySQL Server instances, especially the replication ports and protocols, using network segmentation, firewalls, and access control lists to limit exposure only to trusted hosts and administrators. 3. Enforce strict privilege management by auditing and minimizing high-privilege accounts that can access MySQL Server over the network, employing the principle of least privilege. 4. Implement strong authentication mechanisms and monitor for unusual access patterns or privilege escalations that could indicate attempts to exploit this vulnerability. 5. Regularly back up MySQL databases and test restoration procedures to mitigate data loss or corruption risks. 6. Enable and review detailed logging on MySQL servers to detect anomalous update, insert, or delete operations that could signal exploitation attempts. 7. Consider deploying intrusion detection or prevention systems (IDS/IPS) with signatures or heuristics tuned to detect exploitation attempts targeting MySQL replication vulnerabilities. 8. For environments using MySQL replication, evaluate the replication topology and consider temporary disabling replication if immediate patching is not feasible, to reduce attack surface.
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 8.0.35 and prior and 8.2.0 and prior. 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).