CVE-2020-8261

Name: CVE-2020-8261
Creator: NVD / NIST
Published: 2020-10-28T13:15:13.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 2.13%

Last modified Jun 17, 2026

CVE-2020-8261 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A vulnerability in the Pulse Connect Secure / Pulse Policy Secure < 9.1R9 is vulnerable to arbitrary cookie injection.. EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

A vulnerability in the Pulse Connect Secure / Pulse Policy Secure < 9.1R9 is vulnerable to arbitrary cookie injection.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

2.13%

79.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Ivanti	Connect Secure	9.1	R1
Ivanti	Policy Secure	9.1	R1
Pulsesecure	Pulse Connect Secure	< 9.1	—
Pulsesecure	Pulse Policy Secure	< 9.1	—

References

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601Vendor Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601Vendor Advisory

Timeline

Published: Oct 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-8261?

A vulnerability in the Pulse Connect Secure / Pulse Policy Secure < 9.1R9 is vulnerable to arbitrary cookie injection.

How severe is CVE-2020-8261?

CVE-2020-8261 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8261?

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-2020-8261?

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

Scan your code now

Source: NVD / NIST