CVE-2020-8177

curl 7.20.0 through 7.70.0 is vulnerable to improper restriction of names for files and other resources that can lead too overwriting a local file when the -J flag is used.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.3% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-25)

CWEs

CWE-74, CWE-99

Published

2020-12-14

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• fujitsu:m10-1_firmware
• fujitsu:m10-4_firmware
• fujitsu:m10-4s_firmware
• fujitsu:m12-1_firmware
• fujitsu:m12-2_firmware
• fujitsu:m12-2s_firmware
• haxx:curl
• siemens:sinec_infrastructure_network_services
• splunk:universal_forwarder

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
• https://curl.se/docs/CVE-2020-8177.html
• https://hackerone.com/reports/887462
• https://www.debian.org/security/2021/dsa-4881
• https://www.oracle.com/security-alerts/cpujan2022.html

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