CVE-2024-42057
Zyxel · published 2024-09-03
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Zyxel Corporation via the CVE Program.
A command injection vulnerability in the IPSec VPN feature of Zyxel ATP series firmware versions from V4.32 through V5.38, USG FLEX series firmware versions from V4.50 through V5.38, USG FLEX 50(W) series firmware versions from V4.16 through V5.38, and USG20(W)-VPN series firmware versions from V4.16 through V5.38 could allow an unauthenticated attacker to execute some OS commands on an affected device by sending a crafted username to the vulnerable device. Note that this attack could be successful only if the device was configured in User-Based-PSK authentication mode and a valid user with a long username exceeding 28 characters exists.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | ATP series firmware | versions V4.32 through V5.38: affected |
| Zyxel | USG FLEX series firmware | versions V4.50 through V5.38: affected |
| Zyxel | USG FLEX 50(W) series firmware | versions V4.16 through V5.38: affected |
| Zyxel | USG20(W)-VPN series firmware | versions V4.16 through V5.38: affected |
Added by CISA-ADP (Authorized Data Publisher)
| Vendor | Product | Versions |
|---|---|---|
| zyxel | atp800_firmware | 4.32 – 5.38 and earlier: affected |
| zyxel | usg_flex_700h_firmware | 4.5 – 5.38 and earlier: affected |
| zyxel | usg_flex_50w_firmware | 4.16 – 5.38 and earlier: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:o:zyxel:zld:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 8.1 HIGH — as published by Zyxel Corporation (Secondary)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: none · Automatable: no · Technical impact: total
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
Source dates: published 2024-09-03, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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