CVE-2022-34746

Published: Sep 20, 2022

Modified: May 29, 2025

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

An insufficient entropy vulnerability caused by the improper use of randomness sources with low entropy for RSA key pair generation was found in Zyxel GS1900 series firmware versions prior to V2.70. This vulnerability could allow an unauthenticated attacker to retrieve a private key by factoring the RSA modulus N in the certificate of the web administration interface.

Vendor	Product	Versions
Zyxel	Zyxel GS1900 series firmware	affected `< V2.70`

Weaknesses (CWE)

CWE-331

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-insufficient-entropy-vulnerability-of-gs1900-series-switches

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CVE-2022-34746

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References