How severe is CVE-2020-36873?

CVE-2020-36873 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2020-36873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36873?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2020-36873 have an EU (EUVD) identifier?

Yes. CVE-2020-36873 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30821.

When was CVE-2020-36873 published?

CVE-2020-36873 was published on 2025-11-26 and last updated on 2026-06-17.

CVE-2020-36873

CVE-2020-36873 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30821
Weakness: CWE-306
Published: 2025-11-26
Last modified: 2026-06-17

Description

Astak CM-818T3 2.4GHz wireless security surveillance cameras contain an unauthenticated configuration disclosure vulnerability in the /web/cgi-bin/hi3510/backup.cgi endpoint. The endpoint permits remote download of a compressed configuration backup without requiring authentication or authorization. The exposed backup may include administrative credentials and other sensitive device settings, enabling an unauthenticated remote attacker to obtain information that could facilitate further compromise of the camera or connected network.

Frequently asked questions

What is CVE-2020-36873?: Astak CM-818T3 2.4GHz wireless security surveillance cameras contain an unauthenticated configuration disclosure vulnerability in the /web/cgi-bin/hi3510/backup.cgi endpoint. The endpoint permits remote download of a compressed configuration backup without requiring authentication or authorization. The exposed backup may include administrative credentials and other sensitive device settings, enabling an unauthenticated remote attacker to obtain information that could facilitate further compromise of the camera or connected network.
How severe is CVE-2020-36873?: CVE-2020-36873 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2020-36873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-36873?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2020-36873 have an EU (EUVD) identifier?: Yes. CVE-2020-36873 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30821.
When was CVE-2020-36873 published?: CVE-2020-36873 was published on 2025-11-26 and last updated on 2026-06-17.

References

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

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