CVE-2020-8243

Name: CVE-2020-8243
Creator: NVD / NIST
Published: 2020-09-30T18:15:29.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10Actively ExploitedEPSS 90.76%

Last modified Jun 17, 2026

CVE-2020-8243 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.. CISA has confirmed active exploitation in the wild. EPSS estimates a 90.76% chance of exploitation in the next 30 days.

Description

A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

90.76%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ivanti	Connect Secure	<= 9.0
Ivanti	Connect Secure	9.1
Ivanti	Policy Secure	<= 9.0
Ivanti	Policy Secure	9.1

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588Vendor Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8243US Government Resource

Timeline

Published: Sep 30, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-8243?

A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.

How severe is CVE-2020-8243?

CVE-2020-8243 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 90.76% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-8243?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8243?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST