Cyber Resilience

CVE-2022-43390

Medium

Published: 11 January 2023

Published
11 January 2023
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0250 85.7th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-43390 is a medium-severity OS Command Injection (CWE-78) vulnerability in Zyxel Lte7480-M804 Firmware. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 14.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A command injection vulnerability in the CGI program of Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to execute some OS commands on a vulnerable device by sending a crafted HTTP request.

CWE(s)
CWE-78

Related Threats

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

Affected Assets

zyxel
lte7480-m804 firmware
≤ 1.00\(abra.6\)c0
zyxel
lte7490-m904 firmware
≤ 1.00\(abqy.5\)c0
zyxel
nebula nr5101 firmware
≤ 1.15\(accg.3\)c0
zyxel
nebula nr7101 firmware
≤ 1.15\(accc.3\)c0
zyxel
nr5101 firmware
≤ 1.00\(abvc.6\)c0
zyxel
nr7101 firmware
≤ 1.00\(abuv.7\)c0
zyxel
nr7102 firmware
≤ 1.00\(abyd.2\)c0
zyxel
dx3301-t0 firmware
all versions
zyxel
dx4510-b1 firmware
all versions
zyxel
dx5401-b0 firmware
all versions
+29 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References