CVE-2022-43392

A buffer overflow vulnerability in the parameter of web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an…

Medium6.5EPSS 0.64%

Published: 11 Jan 2023
Updated: 27 Nov 2024
Reserved: 18 Oct 2022
Assigned by: Zyxel

Description

A buffer overflow vulnerability in the parameter of web server 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 authorization request.

Scores

CVSS scores of CVE-2022-43392, by who scored it
Scored by	CVSS	Score	Vector
ZyxelCNA (assigner)	3.1	Medium6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified	3.1	Medium6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS (exploitation in 30 days): 0.64% · top 49% of all CVEs (6 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (opens in a new tab)All about CWE-120 and its CVEs

Affected products

Zyxel · NR7101 firmware
- affected < V1.15(ACCC.3)C0

References (1)

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2022-43392](https://trackcve.app/badge/CVE-2022-43392.svg)](https://trackcve.app/cve/CVE-2022-43392)

Record last updated 27 Nov 2024, 17:13 UTC.