GeoVision Door Access Control Device - Shared cryptographic keys

published 2020-06-12 6y ago modified 2026-06-17 4mo ago also EUVD-2020-25194

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits: 0; none known

GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.

Patch / fix

fixed in 5

usavisionsys geovision_gv-as210_firmware 2.21
usavisionsys geovision_gv-as410_firmware 2.21
usavisionsys geovision_gv-as810_firmware 2.21
usavisionsys geovision_gv-as1010_firmware 1.32
usavisionsys geovision_gv-gf192x_firmware 1.10

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Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

GeoVision Door Access Control Device

Classification

Weakness

CWE-326 Inadequate Encryption Strength

References

twcert.org.tw /tw/cp-132-3696-6601c-1.html
third-party-advisory

Sources

CVE List CVE-2020-3929
NVD CVE-2020-3929

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