CVE-2022-34747 is a critical format string vulnerability affecting Zyxel NAS326 firmware versions prior to V5.21(AAZF.12)C0. This flaw allows an unauthenticated, remote attacker to achieve arbitrary code execution by sending a specially crafted UDP packet to the device. With a CVSS score of 9.8, this vulnerability poses a severe risk due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. While there is no known public exploit code or active exploitation in the wild, the vulnerability has garnered significant community attention and media coverage, indicating its potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.21\(aazf.12\)c0CPE matchmatch criteria | cpe:2.3:o:zyxel:nas326_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.