CVE-2023-30803
CVSS v3
9.8
CRITICAL
EPSS Score
18.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can bypass authentication and access administrative functionality by sending HTTP requests using a crafted Y-forwarded-for header.
Technical details
- Published
- 2023-10-10
Frequently asked questions
What is CVE-2023-30803?
The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can bypass authentication and access administrative functionality by sending HTTP requests using a crafted Y-forwarded-for header.
Is CVE-2023-30803 actively exploited?
Active exploitation of CVE-2023-30803 has not been confirmed. Its EPSS score was 18.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-30803?
CVE-2023-30803 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-30803 affecting your environment?
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