What is the CVSS score of CVE-2017-16723?

CVE-2017-16723 has a CVSS 3.0 base score of 6.1 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.4%.

Fl Comserver Basic 232 Firmware CVE-2017-16723

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2017-12-11 ics-cert@hq.dhs.gov

XSS RCE Fl Comserver Basic 232 Firmware Fl Comserver Uni 422 Firmware Fl Comserver Bas 485 T Firmware Fl Com Server Rs232 Firmware Fl Com Server Rs485 Firmware Psi Modem Eth Firmware Fl Comserver Basic 422 Firmware Fl Comserver Basic 485 Firmware Fl Comserver Uni 485 T Firmware Fl Comserver Uni 485 Firmware Fl Comserver Uni 232 Firmware Fl Comserver Bas 422 Firmware Fl Comserver Bas 232 Firmware

6.1

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

6.1 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Dec 11, 2017 - 16:29 cve.org

MEDIUM 6.1

DescriptionCVE.org

A Cross-site Scripting issue was discovered in PHOENIX CONTACT FL COMSERVER BASIC 232/422/485, FL COMSERVER UNI 232/422/485, FL COMSERVER BAS 232/422/485-T, FL COMSERVER UNI 232/422/485-T, FL COM SERVER RS232, FL COM SERVER RS485, and PSI-MODEM/ETH (running firmware versions prior to 1.99, 2.20, or 2.40). The cross-site scripting vulnerability has been identified, which may allow remote code execution.

AnalysisAI

A Cross-site Scripting issue was discovered in PHOENIX CONTACT FL COMSERVER BASIC 232/422/485, FL COMSERVER UNI 232/422/485, FL COMSERVER BAS 232/422/485-T, FL COMSERVER UNI 232/422/485-T, FL COM. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A Cross-site Scripting issue was discovered in PHOENIX CONTACT FL COMSERVER BASIC 232/422/485, FL COMSERVER UNI 232/422/485, FL COMSERVER BAS 232/422/485-T, FL COMSERVER UNI 232/422/485-T, FL COM SERVER RS232, FL COM SERVER RS485, and PSI-MODEM/ETH (running firmware versions prior to 1.99, 2.20, or 2.40). The cross-site scripting vulnerability has been identified, which may allow remote code execution. Affected products include: Phoenixcontact Fl Comserver Basic 232 Firmware, Phoenixcontact Fl Comserver Uni 422 Firmware, Phoenixcontact Fl Comserver Bas 485-T Firmware, Phoenixcontact Fl Com Server Rs232 Firmware, Phoenixcontact Fl Com Server Rs485 Firmware. Version information: prior to 1.99.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.