CVE-2023-27992
critical · 9.8Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply updates per vendor instructions.
Added 2023-06-23Remediation due 2023-07-14
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
9.8
CVSS
83.8%
EPSS (exploit prob.)
100th
EPSS percentile
2023-06-19
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| zyxel | nas326_firmware | < 5.21\(aazf.14\)c0 |
| zyxel | nas326 | all versions |
| zyxel | nas540_firmware | < 5.21\(aatb.11\)c0 |
| zyxel | nas540 | all versions |
| zyxel | nas542_firmware | < 5.21\(abag.11\)c0 |
| zyxel | nas542 | all versions |
Check a specific version with /api/v1/cve/match.
References
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27992
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2023-27992