CVE-2020-15688
CVSS v3
8.8
HIGH
EPSS Score
4.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The HTTP Digest Authentication in the GoAhead web server before 5.1.2 does not completely protect against replay attacks. This allows an unauthenticated remote attacker to bypass authentication via capture-replay if TLS is not used to protect the underlying communication channel.
Technical details
- Published
- 2020-07-23
Frequently asked questions
What is CVE-2020-15688?
The HTTP Digest Authentication in the GoAhead web server before 5.1.2 does not completely protect against replay attacks. This allows an unauthenticated remote attacker to bypass authentication via capture-replay if TLS is not used to protect the underlying communication channel.
Is CVE-2020-15688 actively exploited?
Active exploitation of CVE-2020-15688 has not been confirmed. Its EPSS score was 4.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-15688?
CVE-2020-15688 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2020-15688 affecting your environment?
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