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MEDIUM · 5.9

CVE-2022-34746

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. T...

Vulnerability 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.

CVSS Score

5.9

MEDIUM

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

Affected Products

VendorProductVersions
ZyxelGs1900-8 Firmware< 2.70\(aahh.3\)c0
ZyxelGs1900-8-
ZyxelGs1900-8Hp Firmware< 2.70\(aahi.3\)c0
ZyxelGs1900-8Hp-
ZyxelGs1900-10Hp Firmware< 2.70\(aazi.3\)c0
ZyxelGs1900-10Hp-
ZyxelGs1900-16 Firmware< 2.70\(aahj.3\)c0
ZyxelGs1900-16-
ZyxelGs1900-24 Firmware< 2.70\(aahl.3\)c0
ZyxelGs1900-24-
ZyxelGs1900-24E Firmware< 2.70\(aahk.3\)c0
ZyxelGs1900-24E-
ZyxelGs1900-24Ep Firmware< 2.70\(abto.3\)c0
ZyxelGs1900-24Ep-
ZyxelGs1900-24Hpv2 Firmware< 2.70\(abtp.3\)c0
ZyxelGs1900-24Hpv2-
ZyxelGs1900-48 Firmware< 2.70\(aahn.3\)c0
ZyxelGs1900-48-
ZyxelGs1900-48Hpv2 Firmware< 2.70\(abtq.3\)c0
ZyxelGs1900-48Hpv2-

Related Weaknesses (CWE)

CWE-331

References

FAQ

What is CVE-2022-34746?

CVE-2022-34746 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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. T...

How severe is CVE-2022-34746?

CVE-2022-34746 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-34746?

Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Gs1900-8 Firmware, Zyxel Gs1900-8, Zyxel Gs1900-8Hp Firmware, Zyxel Gs1900-8Hp, Zyxel Gs1900-10Hp Firmware.