Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-kc65-j2c9-zbb4
Vulnerability ID VCID-kc65-j2c9-zbb4
Aliases CVE-2025-21543
Summary mysql: MySQL Server: Denial of Service via network access
Status Published
Exploitability 0.5
Weighted Severity 4.4
Risk 2.2
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3 4.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21543.json
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
epss 0.00084 https://api.first.org/data/v1/epss?cve=CVE-2025-21543
cvssv3.1 4.9 https://www.oracle.com/security-alerts/cpujan2025.html
ssvc Track https://www.oracle.com/security-alerts/cpujan2025.html
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21543.json
https://api.first.org/data/v1/epss?cve=CVE-2025-21543
1093877 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1093877
2339247 https://bugzilla.redhat.com/show_bug.cgi?id=2339247
cpe:2.3:a:oracle:mysql_cluster:7.6.32_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_cluster:7.6.32_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_cluster:8.0.40_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_cluster:8.0.40_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_cluster:8.4.3_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_cluster:8.4.3_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_cluster:9.1.0_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_cluster:9.1.0_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:8.0.40_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_server:8.0.40_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:8.4.3_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_server:8.4.3_and_prior:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql_server:9.1.0_and_prior:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_server:9.1.0_and_prior:*:*:*:*:*:*:*
cpujan2025.html https://www.oracle.com/security-alerts/cpujan2025.html
RHSA-2025:1671 https://access.redhat.com/errata/RHSA-2025:1671
RHSA-2025:1673 https://access.redhat.com/errata/RHSA-2025:1673
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21543.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Found at https://www.oracle.com/security-alerts/cpujan2025.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-01-22T18:10:23Z/ Found at https://www.oracle.com/security-alerts/cpujan2025.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.24523
EPSS Score 0.00084
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:43:03.459976+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21543.json 38.0.0