Strix
26.1K

CVE-2022-34746

MEDIUMCVSS 5.9/10EPSS 0.31%

Last modified

CVE-2022-34746 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
0.31%

22.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ZyxelGs1900-8 Firmware< 2.70\(aahh.3\)c0
ZyxelGs1900-8hp Firmware< 2.70\(aahi.3\)c0
ZyxelGs1900-10hp Firmware< 2.70\(aazi.3\)c0
ZyxelGs1900-16 Firmware< 2.70\(aahj.3\)c0
ZyxelGs1900-24 Firmware< 2.70\(aahl.3\)c0
ZyxelGs1900-24e Firmware< 2.70\(aahk.3\)c0
ZyxelGs1900-24ep Firmware< 2.70\(abto.3\)c0
ZyxelGs1900-24hpv2 Firmware< 2.70\(abtp.3\)c0
ZyxelGs1900-48 Firmware< 2.70\(aahn.3\)c0
ZyxelGs1900-48hpv2 Firmware< 2.70\(abtq.3\)c0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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. 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.
How severe is CVE-2022-34746?
CVE-2022-34746 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2022-34746?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-34746?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST