What is the CVSS score of CVE-2022-26532?

CVE-2022-26532 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.8%.

Nwa50Ax Firmware CVE-2022-26532

HIGH

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)

2022-05-24 security@zyxel.com.tw

Code Injection Zyxel Nwa50Ax Firmware Nwa55Axe Firmware Nwa90Ax Firmware Nwa110Ax Firmware Nwa210Ax Firmware Nwa1123Acv3 Firmware Wac500 Firmware Wac500H Firmware Wax510D Firmware Wax610D Firmware Wax630S Firmware Wax650S Firmware Usg2200 Firmware Usg 20W Firmware Usg 40 Firmware Usg 40W Firmware Usg 60 Firmware Usg 60W Firmware Usg 110 Firmware Usg 2200 Vpn Firmware Usg 310 Firmware Usg 1100 Firmware Usg 1900 Firmware Usg 20W Vpn Firmware Atp200 Firmware Atp500 Firmware Atp800 Firmware Usg210 Firmware Usg310 Firmware Vpn50 Firmware Vpn100 Firmware Vpn300 Firmware Atp100 Firmware Vpn1000 Firmware Atp100W Firmware Atp700 Firmware Usg Flex 100 Firmware Usg Flex 100W Firmware Usg Flex 200 Firmware Usg Flex 500 Firmware Usg Flex 700 Firmware Usg300 Firmware Usg20 Firmware Usg200 Firmware Nsg300 Firmware Nsg100 Firmware Nsg50 Firmware Nxc2500 Firmware Nxc5500 Firmware Nap203 Firmware Nap303 Firmware Nap353 Firmware Nwa1123 Ac Hd Firmware Nwa1123 Ac Pro Firmware Nwa1302 Ac Firmware Nwa5123 Ac Hd Firmware Wac5302D S Firmware Wac5302D Sv2 Firmware Wac6103D I Firmware Wac6303D S Firmware Wac6502D E Firmware Wac6502D S Firmware Wac6503D S Firmware Wac6553D S Firmware Wac6552D S Firmware

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 24, 2022 - 06:15 nvd

HIGH 7.8

DescriptionNVD

A argument injection vulnerability in the 'packet-trace' CLI command 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 execute arbitrary OS commands by including crafted arguments to the CLI command.

AnalysisAI

Technical ContextAI

This vulnerability is classified under CWE-88. A argument injection vulnerability in the 'packet-trace' CLI command 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 execute arbitrary OS commands by including crafted arguments to the CLI command. Affected products include: Zyxel Vpn100 Firmware, Zyxel Vpn1000 Firmware, Zyxel Vpn300 Firmware, Zyxel Vpn50 Firmware, Zyxel Atp100 Firmware. Version information: through 4.71.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.