CVE-2023-34551

HIGHNVD 8.08.0—
EchelonGraph scoreMEDIUM confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2023-08-01. NVD baseline CVSS 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.0Exploit: None knownExposed: 0

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

In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of the EZVIZ SDK command server can allow an authenticated attacker present on the same local network as the camera to achieve remote code execution. This affects CS-C6N-B0-1G2WF Firmware versions before V5.3.0 build 230215 and CS-C6N-R101-1G2WF Firmware versions before V5.3.0 build 230215 and CS-CV310-A0-1B2WFR Firmware versions before V5.3.0 build 230221 and CS-CV310-A0-1C2WFR-C Firmware versions before V5.3.2 build 230221 and CS-C6N-A0-1C2WFR-MUL Firmware versions before V5.3.2 build 230218 and CS-CV310-A0-3C2WFRL-1080p Firmware versions before V5.2.7 build 230302 and CS-CV310-A0-1C2WFR Wifi IP66 2.8mm 1080p Firmware versions before V5.3.2 build 230214 and CS-CV248-A0-32WMFR Firmware versions before V5.2.3 build 230217 and EZVIZ LC1C Firmware versions before V5.3.4 build 230214. The impact is: execute arbitrary code (remote).

CVSS v3
8.0
EG Score
8.0(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: Track

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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

August 1, 2023

Last Modified

July 9, 2026

Advisory Details (2)

Auto-updated Jul 6, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

EZVIZ - Creating Easy Smart Homes

https://www.ezviz.com/data-security/security-notice/detail/827
generic🔴 Active Exploitation

EZVIZ - Creating Easy Smart Homes

http://ezviz.com

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 43× 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 126 total refreshes for this CVE.

  1. 2026-08-09 13:44 UTCEPSS rescore
  2. 2026-08-08 16:34 UTCEPSS rescore
  3. 2026-08-07 16:24 UTCEPSS rescore
  4. 2026-08-06 13:44 UTCEPSS rescore
  5. 2026-08-05 19:15 UTCEPSS rescore
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  7. 2026-08-04 15:07 UTCEPSS rescore
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  12. 2026-07-30 16:26 UTCEPSS rescore
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  21. 2026-07-23 14:16 UTCEPSS rescore
  22. 2026-07-23 14:16 UTCEPSS rescore
  23. 2026-07-23 02:23 UTCEG score recompute
  24. 2026-07-22 23:10 UTCEG score recompute
  25. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-21 15:23 UTCEPSS rescore
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  3. 2026-07-20 17:06 UTCEPSS rescore
  4. 2026-07-19 14:29 UTCEPSS rescore
  5. 2026-07-19 14:29 UTCEPSS rescore
  6. 2026-07-19 02:27 UTCEPSS rescore
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  8. 2026-07-18 10:03 UTCEPSS rescore
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  10. 2026-07-16 17:01 UTCEPSS rescore
  11. 2026-07-15 16:56 UTCEPSS rescore
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  19. 2026-07-12 05:45 UTCEPSS rescore
  20. 2026-07-11 08:26 UTCEPSS rescore
  21. 2026-07-11 08:25 UTCEPSS rescore
  22. 2026-07-09 19:08 UTCEPSS rescore
  23. 2026-07-09 19:08 UTCEPSS rescore
  24. 2026-07-09 02:56 UTCNVD updateCVSS v3 → 8 · severity → HIGH
  25. 2026-07-09 02:08 UTCMITRE cvelistV5
  26. 2026-07-08 15:13 UTCEPSS rescore
  27. 2026-07-07 13:44 UTCEPSS rescore
  28. 2026-07-06 16:26 UTCEPSS rescore
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  30. 2026-07-06 02:21 UTCEPSS rescore
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  34. 2026-07-01 15:04 UTCEPSS rescore
  35. 2026-06-30 23:21 UTCEPSS rescore
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  37. 2026-06-29 14:05 UTCEPSS rescore
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  39. 2026-06-28 14:06 UTCEPSS rescore
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  41. 2026-06-28 04:55 UTCEPSS rescore
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  43. 2026-06-27 03:07 UTCEPSS rescore
  44. 2026-06-27 03:07 UTCEPSS rescore
  45. 2026-06-25 13:48 UTCEPSS rescore
  46. 2026-06-25 13:48 UTCEPSS rescore
  47. 2026-06-24 14:04 UTCEPSS rescore
  48. 2026-06-24 14:03 UTCEPSS rescore
  49. 2026-06-23 21:31 UTCEPSS rescore
  50. 2026-06-23 21:31 UTCEPSS rescore
  51. 2026-06-22 14:24 UTCEPSS rescore
  52. 2026-06-22 14:24 UTCEPSS rescore
  53. 2026-06-21 14:55 UTCEPSS rescore
  54. 2026-06-21 14:55 UTCEPSS rescore
  55. 2026-06-21 01:58 UTCEPSS rescore
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  57. 2026-06-19 19:24 UTCEPSS rescore
  58. 2026-06-19 19:24 UTCEPSS rescore
  59. 2026-06-18 17:51 UTCEPSS rescore
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  61. 2026-06-17 17:51 UTCEPSS rescore
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  64. 2026-06-16 17:51 UTCEPSS rescore
  65. 2026-06-15 17:47 UTCEPSS rescore
  66. 2026-06-14 23:16 UTCEPSS rescore
  67. 2026-06-13 22:59 UTCEPSS rescore
  68. 2026-06-13 22:59 UTCEPSS rescore
  69. 2026-06-12 23:10 UTCEPSS rescore
  70. 2026-06-12 23:10 UTCEPSS rescore
  71. 2026-06-11 13:59 UTCEPSS rescore
  72. 2026-06-11 13:59 UTCEPSS rescore
  73. 2026-06-10 22:17 UTCEPSS rescore
  74. 2026-06-10 13:21 UTCEPSS rescore
  75. 2026-06-08 14:16 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-34551?
CVE-2023-34551 is a high vulnerability published on August 1, 2023. In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of the EZVIZ SDK command server can allow an authenticated attacker present on the same local network as the camera to achieve remote code execution. This affects CS-C6N-B0-1G2WF Firmware versions before V5.3.0…
When was CVE-2023-34551 disclosed?
CVE-2023-34551 was first published in the National Vulnerability Database on August 1, 2023, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-34551 actively exploited?
CVE-2023-34551 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 58.4% of all scored CVEs.
What is the CVSS score of CVE-2023-34551?
CVE-2023-34551 has a CVSS v3 base score of 8.0 (NVD).
How do I remediate CVE-2023-34551?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-34551, 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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