Vulnerability in Zyxel Gs1900-10hp
CVE-2019-15801
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware, these passwords can be decrypted. This is related to fds_sys_passDebugPasswd_ret() and fds_sys_passRecoveryPasswd_ret() in libfds.so.0.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html (Exploit, Third Party Advisory)
- www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml (Vendor Advisory)
Frequently asked questions
- What is CVE-2019-15801?
- CVE-2019-15801 is a high-severity vulnerability in Zyxel Gs1900-10hp, classified under Use of Hard-coded Credentials. CVSS score: 7.5/10. Published 2019-11-14.
- How severe is CVE-2019-15801?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-15801 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.