Is CVE-2021-2471 in the CISA KEV catalog?

No. CVE-2021-2471 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-2471?

CVE-2021-2471 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2021-2471?

CVE-2021-2471 has an EPSS score of 7.32% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-2471?

Upgrade quarkus to 2.6.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-2471

MEDIUMEPSS 94th pctl

5.9

CVSS v3

NVD

Description

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).

How to fix

Remediation Available

quarkusNVD

Affected:>= 2.3.0, < 2.6.0Fixed in:2.6.0CVE-2021-2471derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

7.32%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory2

Embed a live status badge for CVE-2021-2471

Markdown

[![CVE-2021-2471](https://tridentstack.com/cve/badge/CVE-2021-2471.svg)](https://tridentstack.com/cve/CVE-2021-2471)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-2471"><img src="https://tridentstack.com/cve/badge/CVE-2021-2471.svg" alt="CVE-2021-2471"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.