CVE-2022-26532
A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2022-26532- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-88
- Updated
- 2026-11-02
EUVDEUVD-2022-31089
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.
- Record
EUVD-2022-31089- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gfh5-53xq-j227
A argument injection vulnerability in the 'packet-trace' CLI command of Zyxel USG/ZyWALL series...
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.
- Record
GHSA-gfh5-53xq-j227- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-26532- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.2 High
AV:L/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-88, CWE-78
- Updated
- 2026-11-02
Affected products
- zyxel atp series firmware
- zyxel nap203 firmware
- zyxel nsg series firmware
- zyxel nwa50ax firmware
- zyxel nxc2500 firmware
- zyxel usg flex series firmware
- zyxel usg/zywall series firmware
- zyxel vpn series firmware
- zyxel wac500 firmware
- zyxel wax510d firmware
- zyxel atp100 firmware
- zyxel atp100w firmware
Show 58 moreShow less
- zyxel atp200 firmware
- zyxel atp500 firmware
- zyxel atp700 firmware
- zyxel atp800 firmware
- zyxel nap303 firmware
- zyxel nap353 firmware
- zyxel nsg100 firmware
- zyxel nsg300 firmware
- zyxel nsg50 firmware
- zyxel nwa110ax firmware
- zyxel nwa1123-ac-hd firmware
- zyxel nwa1123-ac-pro firmware
- zyxel nwa1123acv3 firmware
- zyxel nwa1302-ac firmware
- zyxel nwa210ax firmware
- zyxel nwa5123-ac-hd firmware
- zyxel nwa55axe firmware
- zyxel nwa90ax firmware
- zyxel nxc5500 firmware
- zyxel usg200 firmware
- zyxel usg20 firmware
- zyxel usg210 firmware
- zyxel usg2200 firmware
- zyxel usg300 firmware
- zyxel usg310 firmware
- zyxel usg 1100 firmware
- zyxel usg 110 firmware
- zyxel usg 1900 firmware
- zyxel usg 20w-vpn firmware
- zyxel usg 20w firmware
- zyxel usg 2200-vpn firmware
- zyxel usg 310 firmware
- zyxel usg 40 firmware
- zyxel usg 40w firmware
- zyxel usg 60 firmware
- zyxel usg 60w firmware
- zyxel usg flex 100 firmware
- zyxel usg flex 100w firmware
- zyxel usg flex 200 firmware
- zyxel usg flex 500 firmware
- zyxel usg flex 700 firmware
- zyxel vpn1000 firmware
- zyxel vpn100 firmware
- zyxel vpn300 firmware
- zyxel vpn50 firmware
- zyxel wac500h firmware
- zyxel wac5302d-s firmware
- zyxel wac5302d-sv2 firmware
- zyxel wac6103d-i firmware
- zyxel wac6303d-s firmware
- zyxel wac6502d-e firmware
- zyxel wac6502d-s firmware
- zyxel wac6503d-s firmware
- zyxel wac6552d-s firmware
- zyxel wac6553d-s firmware
- zyxel wax610d firmware
- zyxel wax630s firmware
- zyxel wax650s firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-26532 is a high vulnerability (CVSS 7.8) in Zyxel Atp Series Firmware, published May 24, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.79%, the 91st percentile. No source names a fixed version.