Is CVE-2020-8255 in the CISA KEV catalog?

No. CVE-2020-8255 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-8255?

CVE-2020-8255 has a CVSS v3 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2020-8255?

CVE-2020-8255 has an EPSS score of 2.26% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-8255?

Upgrade pulse secure desktop client to 9.1 or later.

CVE & CISA-KEV Catalog

CVE-2020-8255

MEDIUMEPSS 81th pctl

4.9

CVSS v3

NVD

Description

A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary file reading vulnerability is fixed using encrypted URL blacklisting that prevents these messages.

CWE-20Improper Input Validation

How to fix

Remediation Available

pulse secure desktop clientNVD

Affected:< 9.1Fixed in:9.1CVE-2020-8255derived 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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

2.26%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Vendor Advisory1

kb.pulsesecure.net

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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.