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

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CVE-2023-27989

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
05/06/2023
Last modified:
12/06/2023

Description

A buffer overflow vulnerability in the CGI program of the Zyxel NR7101 firmware versions prior to V1.00(ABUV.8)C0 could allow a remote authenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

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:lte7480-m804_firmware:*:*:*:*:*:*:*:* 1.00\(abra.6\)c0 (including)
cpe:2.3:h:zyxel:lte7480-m804:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7490-m904_firmware:*:*:*:*:*:*:*:* 1.00\(abqy.5\)c0 (including)
cpe:2.3:h:zyxel:lte7490-m904:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7101_firmware:*:*:*:*:*:*:*:* 1.00\(abuv.7\)c0 (including)
cpe:2.3:h:zyxel:nr7101:-:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_nr7101_firmware:*:*:*:*:*:*:*:* 1.15\(accc.3\)c0 (including)
cpe:2.3:h:zyxel:nebula_nr7101:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools