CVE-2020-36911

Cobbr Covenant remote code execution

9.8 CRITICALPublic exploitEPSS 12.3%

Published13 Jan 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Cobbr Covenant≥ 0.1.3 ≤ 0.5

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://cobbr.io/Covenant.htmlBroken Link
https://github.com/cobbr/CovenantProduct
https://github.com/Zeop-CyberSec/covenant_rce/blob/master/covenant_jwt_rce.rbProduct
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-huntersExploitThird Party Advisory
https://www.exploit-db.com/exploits/51141Exploit
https://www.vulncheck.com/advisories/covenant-remote-code-execution-rceThird Party Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2020-36911 being actively exploited?

CVE-2020-36911 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 12.3%.

How severe is CVE-2020-36911?

CVE-2020-36911 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 12.3% probability of exploitation.

Which products are affected by CVE-2020-36911?

Affected products include Cobbr Covenant.

How do I fix CVE-2020-36911?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-36911 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.