CVE-2022-26532
Zyxel · published 2022-05-24
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Zyxel Corporation via the CVE Program.
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.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | USG/ZyWALL series firmware | 4.09 through 4.71: affected |
| Zyxel | USG FLEX series firmware | 4.50 through 5.21: affected |
| Zyxel | ATP series firmware | 4.32 through 5.21: affected |
| Zyxel | VPN series firmware | 4.30 through 5.21: affected |
| Zyxel | NSG series firmware | 1.00 through 1.33 Patch 4: affected |
| Zyxel | NXC2500 firmware | <= 6.10(AAIG.3): affected |
| Zyxel | NAP203 firmware | <= 6.25(ABFA.7): affected |
| Zyxel | NWA50AX firmware | <= 6.25(ABYW.5): affected |
| Zyxel | WAC500 firmware | <= 6.30(ABVS.2): affected |
| Zyxel | WAX510D firmware | <= 6.30(ABTF.2): affected |
Products named in NVD's CPE match criteria (50)
cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_110_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_1100_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_1900_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_20w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_2200-vpn_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_310_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg200_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg20_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg210_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg2200_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg300_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:usg310_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nsg300_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nsg100_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nsg50_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nxc2500_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nxc5500_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nap203_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nap303_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nap353_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa50ax_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa55axe_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa90ax_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa110ax_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa210ax_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa1123-ac-hd_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa1123-ac-pro_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa1123acv3_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa1302-ac_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:zyxel:nwa5123-ac-hd_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 7.8 HIGH — as published by Zyxel Corporation (Secondary)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1: 7.8 HIGH — as published by NIST (Primary)
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 — as published by NIST (Primary)
AV:L/AC:L/Au:N/C:C/I:C/A:C
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- http://packetstormsecurity.com/files/167464/Zyxel-Buffer-Overflow-Format-String-Command-Injection.html
- http://seclists.org/fulldisclosure/2022/Jun/15
- https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml
- http://packetstormsecurity.com/files/167464/Zyxel-Buffer-Overflow-Format-String-Command-Injection.html
- http://seclists.org/fulldisclosure/2022/Jun/15
- https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml
Source dates: published 2022-05-24, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
This product uses the NVD API but is not endorsed or certified by the NVD.
CVE records: Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
CISA's Known Exploited Vulnerabilities catalog and CISA Vulnrichment data are CC0 1.0. CISA advisories are shown with the TLP label their document carries. No endorsement by CISA, DHS, NIST or MITRE is stated or implied.