CVE-2016-4503
CRITICALCVSS 9.8/10EPSS 2.85%
Last modified
CVE-2016-4503 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.85% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Moxa | Device Server Web Console 5232-N Firmware | All versions |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-4503?
CVE-2016-4503 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.85% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4503?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2016
- CVE-2016-4497Panasonic FPWIN Pro 5.x through 7.x before 7.130 allows loca…
- CVE-2016-4498Panasonic FPWIN Pro 5.x through 7.x before 7.130 accesses an…
- CVE-2016-4499Heap-based buffer overflow in Panasonic FPWIN Pro 5.x throug…
- CVE-2016-4500Moxa UC-7408 LX-Plus devices allow remote authenticated user…
- CVE-2016-4501Environmental Systems Corporation (ESC) 8832 Data Controller…
- CVE-2016-4502Environmental Systems Corporation (ESC) 8832 Data Controller…
- CVE-2016-4504A Cross-Site Request Forgery issue was discovered in Meteoco…
- CVE-2016-4505Resource Data Management (RDM) Intuitive 650 TDB Controller …
- CVE-2016-4506Cross-site request forgery (CSRF) vulnerability on Resource …
- CVE-2016-4507SQL injection vulnerability in Rexroth Bosch BLADEcontrol-We…6.4
- CVE-2016-4508Cross-site scripting (XSS) vulnerability in Rexroth Bosch BL…6.1
- CVE-2016-4509Heap-based buffer overflow in elcsoft.exe in Eaton ELCSoft 2…
Are you affected by CVE-2016-4503?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST