CVE-2020-36873Public exploitNetwork attack vector

Configuration disclosure via unauthenticated backup endpoint

Published Nov 26, 2025 · Updated Jul 28, 2026

Information disclosure in the Astak CM-818T3 version 0 allows remote attackers to download its configuration backup without authentication. The /web/cgi-bin/hi3510/backup.cgi endpoint returns a compressed backup without checking authentication or authorization. Network access to the camera is sufficient; when stored in the archive, administrative credentials and sensitive settings become readable and can support further compromise.

CVSS severity8.7
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in the Astak CM-818T3 version 0 allows remote attackers to download its configuration backup without authentication. The /web/cgi-bin/hi3510/backup.cgi endpoint returns a compressed backup without checking authentication or authorization. Network access to the camera is sufficient; when stored in the archive, administrative credentials and sensitive settings become readable and can support further compromise.

The record

CVE
CVE-2020-36873
Published
Nov 26, 2025
Updated
Jul 28, 2026
Vendor
Astak
Product
CM-818T3 2.4GHz Wireless Security Surveillance Camera
Classifications
CWE-306, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Astak · CM-818T3 2.4GHz Wireless Security Surveillance Cameraversion=0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

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

Technologies

Your stack

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Your stack

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