CVE-2016-4503
Moxa Device Server Web Console 5232-N allows remote attackers to bypass authentication, and consequently modify settings and data, via vectors related to reading a cookie parameter containing a UserId value.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Moxa Device Server Web Console 5232-N allows remote attackers to bypass authentication, and consequently modify settings and data, via vectors related to reading a cookie parameter containing a UserId value.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.85% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- moxa/device server web console 5232-n firmware
- Source
- ics-cert@hq.dhs.gov
EPSS 2.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/91670Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-16-189-02Third Party Advisory, US Government Resource
- http://www.securityfocus.com/bid/91670Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-16-189-02Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.