CVE-2023-33010 is a critical buffer overflow vulnerability affecting multiple Zyxel firewall and VPN series firmware versions. This flaw allows an unauthenticated attacker to remotely trigger denial-of-service conditions and potentially execute arbitrary code on affected devices. With a CVSS score of 9.8 (Critical) and an EPSS score indicating a high likelihood of exploitation, this vulnerability poses a significant risk. It is actively exploited in the wild, as confirmed by its inclusion in the KEV catalog, and has garnered substantial community discussion and media coverage, despite no public exploit code being readily available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.32, < 5.36CPE matchmatch criteria | cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* | ||
5.36CPE matchmatch criteria | cpe:2.3:o:zyxel:atp100_firmware:5.36:-:*:*:*:*:*:* | ||
5.36CPE matchmatch criteria | cpe:2.3:o:zyxel:atp100_firmware:5.36:patch1:*:*:*:*:*:* | ||
>= 4.32, < 5.36CPE matchmatch criteria | cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* | ||
5.36CPE matchmatch criteria | cpe:2.3:o:zyxel:atp200_firmware:5.36:-:*:*:*:*:*:* |
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.