CVE-2020-25014

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

27/11/2020

Last modified:

12/12/2024

Description

A stack-based buffer overflow in fbwifi_continue.cgi on Zyxel UTM and VPN series of gateways running firmware version V4.30 through to V4.55 allows remote unauthenticated attackers to execute arbitrary code via a crafted http packet.

Impact

Vector 3.x

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

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

7.50

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:zywall_110:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:zywall_1100:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:zywall_310:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:usg_110:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:usg_1100:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:usg_1900:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)
cpe:2.3:h:zyxel:usg_20w:-:::::::*
cpe:2.3:o:zyxel:zld::::::::	4.30 (including)	4.55 (including)

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

CVE-2020-25014

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools