Is CVE-2020-8239 in the CISA KEV catalog?

No. CVE-2020-8239 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8239?

CVE-2020-8239 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-8239?

CVE-2020-8239 has an EPSS score of 2.00% (78th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8239?

Upgrade pulse secure desktop client to 9.1 or later.

CVE & CISA-KEV Catalog

CVE-2020-8239

CRITICALEPSS 78th pctl

9.8

CVSS v3

NVD

Description

A vulnerability in the Pulse Secure Desktop Client < 9.1R9 is vulnerable to the client registry privilege escalation attack. This fix also requires Server Side Upgrade due to Standalone Host Checker Client (Windows) and Windows PDC.

How to fix

Remediation Available

pulse secure desktop clientNVD

Affected:< 9.1Fixed in:9.1CVE-2020-8239derived 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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.00%probability of exploitation in 30 days

78thpercentile

Elevated risk: more likely to be exploited than 78% of all known CVEs.

References

Vendor Advisory1

kb.pulsesecure.net

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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.