CVE-2021-23017
CVSS v3
7.7
HIGH
EPSS Score
73.2 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Technical details
- Published
- 2021-06-01
- Exploit-DB
- EDB-50973
Frequently asked questions
What is CVE-2021-23017?
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Is CVE-2021-23017 actively exploited?
Active exploitation of CVE-2021-23017 has not been confirmed. The EPSS score is 73.2%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23017?
CVE-2021-23017 has a CVSS v3 base score of 7.7 (HIGH severity).
Is CVE-2021-23017 affecting your environment?
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