CVE-2022-34747

Description

A format string vulnerability in Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0 could allow an attacker to achieve unauthorized remote code execution via a crafted UDP packet.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 2.18% Top 20%
Vendor Advisory zyxel.com
Affected: Zyxel Zyxel NAS326 firmware
Published at:
Updated at:

References

Link Tags
https://www.zyxel.com/support/Zyxel-security-advisory-for-format-string-vulnerability-in-NAS.shtml patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-34747?
CVE-2022-34747 has been scored as a critical severity vulnerability.
How to fix CVE-2022-34747?
To fix CVE-2022-34747, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-34747 being actively exploited in the wild?
It is possible that CVE-2022-34747 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-34747?
CVE-2022-34747 affects Zyxel Zyxel NAS326 firmware.
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