Skip to main content
HIGH

CVE-2026-73703

CVSS v3

8.8

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-09-29

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. A successful exploit could allow an attacker to execute arbitrary script code in a victim's browser in the context of the affected interface.

Technical details

Published
2026-09-01
Last Modified
2026-09-02

Frequently asked questions

What is CVE-2026-73703?

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. A successful exploit could allow an attacker to execute arbitrary script code in a victim's browser in the context of the affected interface.

Is CVE-2026-73703 actively exploited?

Active exploitation of CVE-2026-73703 has not been confirmed. Its EPSS score was 0.3% on 2026-09-29, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-73703?

CVE-2026-73703 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-73703 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IPSearch CVEsSIEM & TIP integrations

No credit card required · 500 free checks/month · Free API key

Other 2026 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database