Cyber Resilience

CVE-2022-34747

Critical

Published: 06 September 2022

Published
06 September 2022
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0278 86.4th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-34747 is a critical-severity Use of Externally-Controlled Format String (CWE-134) vulnerability in Zyxel Nas326 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 13.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-134

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

zyxel
nas326 firmware
≤ 5.21\(aazf.12\)c0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References