CVE-2020-11635

Name: CVE-2020-11635
Creator: NVD / NIST
Published: 2021-02-16T20:15:15.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2020-11635 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.43%

34.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Zscaler	Client Connector	< 3.1.0

References

https://trust.zscaler.com/posts/7316Vendor Advisory
https://trust.zscaler.com/posts/7316Vendor Advisory

Timeline

Published: Feb 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11635?

How severe is CVE-2020-11635?

CVE-2020-11635 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11635?

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-2020-11635?

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

Scan your code now

Source: NVD / NIST