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HIGH

CVE-2020-8231

CVSS v3

7.5

HIGH

EPSS Score

3.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.

Technical details

Published
2020-12-14

Frequently asked questions

What is CVE-2020-8231?

Due to use of a dangling pointer, libcurl 7.29.0 through 7.71.1 can use the wrong connection when sending data.

Is CVE-2020-8231 actively exploited?

Active exploitation of CVE-2020-8231 has not been confirmed. Its EPSS score was 3.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-8231?

CVE-2020-8231 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2020-8231 affecting your environment?

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