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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

5.3% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2020-12-14

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• haxx:libcurl
• oracle:communications_cloud_native_core_policy
• siemens:sinec_infrastructure_network_services
• splunk:universal_forwarder

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• https://curl.haxx.se/docs/CVE-2020-8231.html
• https://hackerone.com/reports/948876
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

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