CVE-2021-31808
CVSS v3
6.5
MEDIUM
EPSS Score
0.3 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
Technical details
- Published
- 2021-05-27
Frequently asked questions
What is CVE-2021-31808?
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this.
Is CVE-2021-31808 actively exploited?
Active exploitation of CVE-2021-31808 has not been confirmed. The EPSS score is 0.3%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-31808?
CVE-2021-31808 has a CVSS v3 base score of 6.5 (MEDIUM severity).
Is CVE-2021-31808 affecting your environment?
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