CVE-2020-36911

Name: CVE-2020-36911
Creator: NVD / NIST
Published: 2026-01-13T23:15:48.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 10.45%

Last modified Jun 17, 2026

CVE-2020-36911 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system.. EPSS estimates a 10.45% chance of exploitation in the next 30 days.

Description

Covenant 0.1.3 - 0.5 contains a remote code execution vulnerability that allows attackers to craft malicious JWT tokens with administrative privileges. Attackers can generate forged tokens with admin roles and upload custom DLL payloads to execute arbitrary commands on the target system.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

10.45%

95.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Cobbr	Covenant	>= 0.1.3, <= 0.5

References

https://cobbr.io/Covenant.htmlBroken Link
https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rbProduct
https://github.com/cobbr/CovenantProduct
https://web.archive.org/web/20201013165001/https://twitter.com/cobbr_io/status/1316058367161401344Issue Tracking
https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-huntersExploit, Third Party Advisory
https://www.exploit-db.com/exploits/51141Exploit
https://www.vulncheck.com/advisories/covenant-remote-code-execution-rceThird Party Advisory
https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rbProduct
https://web.archive.org/web/20201101052547/https://blog.null.farm/hunting-the-huntersExploit, Third Party Advisory

Timeline

Published: Jan 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-36911?

How severe is CVE-2020-36911?

CVE-2020-36911 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 10.45% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36911?

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-2020-36911?

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

Scan your code now

Source: NVD / NIST