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Vulnerability · Published May 24, 2022 · Assigned by Zyxel

CVE-2022-26532

High 7.8

In plain English

A high-severity argument injection in ATP series firmware from Zyxel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.8% (higher than 92% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)4.8%top 8.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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 (as reported)

VendorProductVersions
Zyxel USG/ZyWALL series firmware 4.09 through 4.71
Zyxel USG FLEX series firmware 4.50 through 5.21
Zyxel ATP series firmware 4.32 through 5.21
Zyxel VPN series firmware 4.30 through 5.21
Zyxel NSG series firmware 1.00 through 1.33 Patch 4
Zyxel NXC2500 firmware <= 6.10(AAIG.3)
Zyxel NAP203 firmware <= 6.25(ABFA.7)
Zyxel NWA50AX firmware <= 6.25(ABYW.5)
Zyxel WAC500 firmware <= 6.30(ABVS.2)
Zyxel WAX510D firmware <= 6.30(ABTF.2)

Weakness: CWE-88 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References