Oracle MySQL Server up to 8.0.42/8.4.5/9.3.0 Optimizer improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Oracle MySQL Server up to 8.0.42/8.4.5/9.3.0. This affects an unknown part of the component Optimizer. This manipulation causes improper authorization. This vulnerability appears as CVE-2025-50079. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle MySQL Server up to 8.0.42/8.4.5/9.3.0. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component Optimizer. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect availability. The summary by CVE is:

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.0-8.0.42, 8.4.0-8.4.5 and 9.0.0-9.3.0. 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).

It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2025-50079 since 06/12/2025. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/02/2025). The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 253482 (TencentOS Server 4: mysql (TSSA-2025:0613)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (253482) and CERT Bund (WID-SEC-2025-1567). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Red Hat Enterprise Linux
  • Oracle MySQL
  • Ubuntu Linux
  • Oracle Linux
  • RESF Rocky Linux
  • Xerox FreeFlow Print Server

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.9
CNA Vector (oracle): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 253482
Nessus Name: TencentOS Server 4: mysql (TSSA-2025:0613)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/12/2025 CVE reserved
07/15/2025 +33 days Advisory disclosed
07/15/2025 +0 days VulDB entry created
12/02/2025 +140 days VulDB entry last update

Sourcesinfo

Vendor: oracle.com

Advisory: oracle.com
Status: Confirmed

CVE: CVE-2025-50079 (🔒)
GCVE (CVE): GCVE-0-2025-50079
GCVE (VulDB): GCVE-100-316483
CERT Bund: WID-SEC-2025-1567 - Oracle MySQL: Mehrere Schwachstellen

Entryinfo

Created: 07/15/2025 22:30
Updated: 12/02/2025 18:38
Changes: 07/15/2025 22:30 (64), 07/17/2025 14:45 (1), 08/21/2025 21:18 (2), 09/15/2025 06:53 (7), 09/17/2025 18:18 (1), 12/02/2025 18:38 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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