CVE-2020-81777.8HighCWE-99

CVE-2020-8177: Haxx https://github.com/curl/curl vulnerability

Haxx · https://github.com/curl/curl

Vendor fix available · Affected: Haxx https://github.com/curl/curl · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.3%probability of exploitation in the next 30 days

70th percentile

050100

Higher than 70% of scored CVEs

7.8HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

https://github.com/curl/curlcurl 7.20.0 to and including 7.70.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Control of Resource Identifiers · Injection and Smuggling
Vendor: Haxx
Published: December 2020
Band: Possible (1 to 10%), December 2020
Bounty reports: 3 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2020-8177

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

CVE-2020-8177: curl overwrite local file with -Jcurl · 2020 · medium severityValid
curl overwrites local file with -J option if file non-readable, but file writable.curl · 2020 · medium severityInformative
CVE-2026-92390: -J no-clobber guarantee bypassed with 103 early hintscurl · 2026 · none severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2020-8177 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.