CVE-2021-26273

Name: CVE-2021-26273
Creator: NVD / NIST
Published: 2021-07-07T14:15:10.04+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2021-26273 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. The Agent in NinjaRMM 5.0.909 has Incorrect Access Control.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

The Agent in NinjaRMM 5.0.909 has Incorrect Access Control.

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

0.38%

29.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Ninjarmm	Ninjarmm	5.0.909

References

https://improsec.com/tech-blog/privilege-escalation-vulnerability-in-ninjarmmExploit, Third Party Advisory
https://www.ninjarmm.comProduct, Vendor Advisory
https://www.ninjarmm.com/blog/cve-2021-26273-cve-2021-26274/Vendor Advisory
https://improsec.com/tech-blog/privilege-escalation-vulnerability-in-ninjarmmExploit, Third Party Advisory
https://www.ninjarmm.comProduct, Vendor Advisory
https://www.ninjarmm.com/blog/cve-2021-26273-cve-2021-26274/Vendor Advisory

Timeline

Published: Jul 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26273?

The Agent in NinjaRMM 5.0.909 has Incorrect Access Control.

How severe is CVE-2021-26273?

CVE-2021-26273 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26273?

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-2021-26273?

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

Scan your code now

Source: NVD / NIST