RCE in Zyxel Atp100
CVE-2022-26532
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.
EPSS: 0.048 (91.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@zyxel.com.tw (x_refsource_CONFIRM, Vendor Advisory)
- security@zyxel.com.tw (mailing-list, x_refsource_FULLDISC)
- security@zyxel.com.tw (x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-26532?
- CVE-2022-26532 is a high-severity vulnerability in Zyxel Atp100, classified under Argument Injection. CVSS score: 7.8/10. Published 2022-05-24.
- How severe is CVE-2022-26532?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-26532 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.