CVE-2022-34747
CRITICALCVSS 9.8/10EPSS 1.53%
Last modified
CVE-2022-34747 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.53% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Nas326 Firmware | < 5.21\(aazf.12\)c0 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-34747?
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.
How severe is CVE-2022-34747?
CVE-2022-34747 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.53% probability of exploitation in the next 30 days.
How do I fix CVE-2022-34747?
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-2022-34747?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST