CVE-2022-26531

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

24/05/2022

Last modified:

09/02/2024

Description

Multiple improper input validation flaws were identified in some CLI commands of Zyxel USG/ZyWALL series firmware versions 4.09 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, VPN series firmware versions 4.30 through 5.21, NSG series firmware versions 1.00 through 1.33 Patch 4, NXC2500 firmware version 6.10(AAIG.3) and earlier versions, NAP203 firmware version 6.25(ABFA.7) and earlier versions, NWA50AX firmware version 6.25(ABYW.5) and earlier versions, WAC500 firmware version 6.30(ABVS.2) and earlier versions, and WAX510D firmware version 6.30(ABTF.2) and earlier versions, that could allow a local authenticated attacker to cause a buffer overflow or a system crash via a crafted payload.

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

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

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

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

Base Score 2.0

4.60

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:zyxel:vpn100_firmware::::::::	4.30 (including)	5.21 (including)
cpe:2.3:h:zyxel:vpn100:-:::::::*
cpe:2.3:o:zyxel:vpn1000_firmware::::::::	4.30 (including)	5.21 (including)
cpe:2.3:h:zyxel:vpn1000:-:::::::*
cpe:2.3:o:zyxel:vpn300_firmware::::::::	4.30 (including)	5.21 (including)
cpe:2.3:h:zyxel:vpn300:-:::::::*
cpe:2.3:o:zyxel:vpn50_firmware::::::::	4.30 (including)	5.21 (including)
cpe:2.3:h:zyxel:vpn50:-:::::::*
cpe:2.3:o:zyxel:atp100_firmware::::::::	4.32 (including)	5.21 (including)
cpe:2.3:h:zyxel:atp100:-:::::::*
cpe:2.3:o:zyxel:atp100w_firmware::::::::	4.32 (including)	5.21 (including)
cpe:2.3:h:zyxel:atp100w:-:::::::*
cpe:2.3:o:zyxel:atp200_firmware::::::::	4.32 (including)	5.21 (including)
cpe:2.3:h:zyxel:atp200:-:::::::*
cpe:2.3:o:zyxel:atp500_firmware::::::::	4.32 (including)	5.21 (including)

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

CVE-2022-26531

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools