RCE in Zyxel Nas326
CVE-2023-27988
The post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device remotely.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Zyxel Nas326
- Zyxel Nas326 Firmware — versions < V5.21(AAZF.13)C0
- Zyxel Nas326 Firmware
- Zyxel Nas540
- Zyxel Nas540 Firmware
- Zyxel Nas542
- Zyxel Nas542 Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-27988?
- CVE-2023-27988 is a high-severity vulnerability in Zyxel Nas326, classified under OS Command Injection. CVSS score: 7.2/10. Published 2023-05-30.
- How severe is CVE-2023-27988?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2023-27988 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.