Path Traversal in Mercusys Mercury X18g
CVE-2021-23242
MERCUSYS Mercury X18G 1.0.5 devices allow Directory Traversal via ../ to the UPnP server, as demonstrated by the /../../conf/template/uhttpd.json URI.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.018 (76.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Mercusys Mercury_x18g
- Mercusys Mercury_x18g_firmware — versions 1.0.5
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-23242?
- CVE-2021-23242 is a medium-severity vulnerability in Mercusys Mercury X18g, classified under Path Traversal. CVSS score: 5.3/10. Published 2021-01-07.
- How severe is CVE-2021-23242?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-23242 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.