CVE-2021-28651
CVSS v3
7.5
HIGH
EPSS Score
6.2 %
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 a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.
Technical details
- Published
- 2021-05-27
Frequently asked questions
What is CVE-2021-28651?
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the parser leaks a small amount of memory. However, there is an unspecified attack methodology that can easily trigger a large amount of memory consumption.
Is CVE-2021-28651 actively exploited?
Active exploitation of CVE-2021-28651 has not been confirmed. The EPSS score is 6.2%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-28651?
CVE-2021-28651 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-28651 affecting your environment?
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