CVE-2020-8657Known exploitationPublic exploitNetwork attack vector

Admin token disclosure via hard-coded API key

Published Feb 6, 2020 · Updated Oct 21, 2025

Use of hard-coded credentials in EyesOfNetwork 5.3 allows remote attackers to obtain the administrator access token through the EONAPI. The EONAPI_KEY constant in include/api_functions.php is identical across installations for API version 2.4.2, allowing token calculation or guessing. No authentication or user interaction is required; a successful request can expose administrative API access and permit privileged data or object operations.

CVSS severity9.8
Critical
EPSS probability91.87%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of hard-coded credentials in EyesOfNetwork 5.3 allows remote attackers to obtain the administrator access token through the EONAPI. The EONAPI_KEY constant in include/api_functions.php is identical across installations for API version 2.4.2, allowing token calculation or guessing. No authentication or user interaction is required; a successful request can expose administrative API access and permit privileged data or object operations.

The record

CVE
CVE-2020-8657
Published
Feb 6, 2020
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2020CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2021Exploitation reportedCVE-2020-8657 listed in CISA KEV
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1552.001Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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