CVE-2020-8657

Name: CVE-2020-8657
Creator: NVD / NIST
Published: 2020-02-06T18:15:13.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 91.87%

Last modified Jun 17, 2026

CVE-2020-8657 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in EyesOfNetwork 5.3. The installation uses the same API key (hardcoded as EONAPI_KEY in include/api_functions.php for API version 2.4.2) by default for all installations, hence allowing an attacker to calculate/guess the admin access token.. CISA has confirmed active exploitation in the wild. EPSS estimates a 91.87% chance of exploitation in the next 30 days.

Description

An issue was discovered in EyesOfNetwork 5.3. The installation uses the same API key (hardcoded as EONAPI_KEY in include/api_functions.php for API version 2.4.2) by default for all installations, hence allowing an attacker to calculate/guess the admin access token.

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

EPSS Probability

91.87%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 3, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Eyesofnetwork	Eyesofnetwork	5.3-0

References

http://packetstormsecurity.com/files/156605/EyesOfNetwork-AutoDiscovery-Target-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/EyesOfNetworkCommunity/eonapi/issues/17Third Party Advisory
http://packetstormsecurity.com/files/156605/EyesOfNetwork-AutoDiscovery-Target-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/EyesOfNetworkCommunity/eonapi/issues/17Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8657US Government Resource

Timeline

Published: Feb 6, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-8657?

How severe is CVE-2020-8657?

CVE-2020-8657 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 91.87% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-8657?

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-2020-8657?

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

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Source: NVD / NIST