Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2022-43391

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
11/01/2023
Last modified:
25/02/2026

Description

A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
6.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:zyxel:lte3301-plus_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte5388-m804_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte5388-m804:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte5398-m904_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte5398-m904:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7240-m403_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte7240-m403:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7461-m602_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte7461-m602:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7480-m804_firmware:*:*:*:*:*:*:*:* 1.00\(abra.6\)c0 (excluding)
cpe:2.3:h:zyxel:lte7480-m804:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7480-s905_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:zyxel:lte7480-s905:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7485-s905_firmware:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools