CVE-2025-50092
Description
A denial of service flaw was found in MySQL. This flaw allows a privileged attacker with network access via multiple protocols to cause a crash in the MySQL server.
Statement
A moderate severity denial of service flaw was found in the InnoDB component of MySQL. A highly privileged attacker with network access via multiple protocols could exploit this flaw to cause the MySQL server to hang or crash repeatedly, resulting in a complete denial of service of the MySQL server; confidentiality and integrity are not impacted. The mysql packages and the mysql:8.0 and mysql:8.4 module streams in Red Hat Enterprise Linux 8, 9, and 10 are affected, and fixes for those products are being pursued through the delegated update process for this component. The mysql8.0 and mysql8.4 packages in Fedora are affected, but the community package update has been deferred, leaving Fedora users exposed to the denial of service until a future update is released. MySQL in Red Hat Enterprise Linux 6 Extended Life Cycle Support is not affected because the vulnerable code is not present in that version. For Red Hat In-Vehicle OS, the component is delegated and recorded as not affected. Red Hat rates this flaw as moderate impact with a CVSS 3.1 base score of 4.3, slightly lower than the upstream Oracle score of 4.9, reflecting Red Hat's assessment of lower privileges required combined with reduced availability impact.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. For Red Hat Enterprise Linux, updated mysql packages that address this flaw have been delivered through the standard update channels of the affected releases, and users are advised to apply them. For Fedora, the package update is deferred; users should apply future mysql package updates when they become available.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.3 | N/A | 4.9 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | High |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | Low | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
cve.org: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
If an attacker can trigger the allocation of the limited resources, but the number or size of the resources is not controlled, then the most common result is denial of service. This would prevent valid users from accessing the product, and it could potentially have an impact on the surrounding environment, i.e., the product may slow down, crash due to unhandled errors, or lock out legitimate users. For example, a memory exhaustion attack against an application could slow down the application as well as its host operating system.
Access Control,Other
Technical Impact: Bypass Protection Mechanism; Other
In some cases it may be possible to force the product to "fail open" in the event of resource exhaustion. The state of the product -- and possibly the security functionality - may then be compromised.
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