CVE-2020-36873

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.7Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
70(Attend)
EG Risk 70/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity87% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

November 26, 2025

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

Astak CM-818T3 Unauthenticated Configuration Disclosure | Advisories | VulnCheck

https://www.vulncheck.com/advisories/astak-cm818t3-unauthenticated-config-disclosure
generic

Packet Storm Security

https://packetstorm.news/files/id/156532/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 141 total refreshes for this CVE.

  1. 2026-07-28 02:27 UTCEG score recompute
  2. 2026-07-28 02:27 UTCGHSA enrichment
  3. 2026-07-26 14:51 UTCEPSS rescore
  4. 2026-07-25 14:15 UTCEPSS rescore
  5. 2026-07-24 14:14 UTCEPSS rescore
  6. 2026-07-23 14:15 UTCEPSS rescore
  7. 2026-07-23 14:15 UTCEPSS rescore
  8. 2026-07-23 01:53 UTCEG score recompute
  9. 2026-07-22 22:39 UTCEG score recompute
  10. 2026-07-22 14:05 UTCEPSS rescore
  11. 2026-07-21 15:22 UTCEPSS rescore
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  1. 2026-07-13 06:10 UTCEPSS rescore
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  21. 2026-06-25 13:48 UTCEPSS rescore
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  26. 2026-06-22 14:23 UTCEPSS rescore
  27. 2026-06-22 14:23 UTCEPSS rescore
  28. 2026-06-21 14:54 UTCEPSS rescore
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  30. 2026-06-21 01:57 UTCEPSS rescore
  31. 2026-06-19 19:24 UTCEPSS rescore
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  39. 2026-06-13 22:58 UTCEPSS rescore
  40. 2026-06-12 23:10 UTCEPSS rescore
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  42. 2026-06-10 22:16 UTCEPSS rescore
  43. 2026-06-10 13:20 UTCEPSS rescore
  44. 2026-06-08 15:16 UTCEG score recompute▲ 8.70
  45. 2026-06-08 15:16 UTCGHSA enrichment
  46. 2026-06-08 14:15 UTCEPSS rescore
  47. 2026-06-07 15:23 UTCEPSS rescore
  48. 2026-06-07 15:23 UTCEPSS rescore
  49. 2026-06-07 15:23 UTCEPSS rescore
  50. 2026-06-06 13:46 UTCEPSS rescore
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  74. 2026-05-22 21:16 UTCEPSS rescore
  75. 2026-05-22 21:16 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-36873?
CVE-2020-36873 is a high vulnerability published on November 26, 2025. 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.…
When was CVE-2020-36873 disclosed?
CVE-2020-36873 was first published in the National Vulnerability Database on November 26, 2025, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-36873 actively exploited?
CVE-2020-36873 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.6% of all scored CVEs.
What is the CVSS score of CVE-2020-36873?
CVE-2020-36873 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2020-36873?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36873, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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