CVE & CISA-KEV Catalog

CVE-2020-8284

LOWEPSS 89th pctl
3.7
CVSS v3
NVD

Description

A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.

How to fix

Remediation Available
curlDebian
Fixed in:7.74.0-1CVE-2020-8284
Fixed in:7.74.0-1CVE-2020-8284
Fixed in:7.74.0-1CVE-2020-8284
Fixed in:7.74.0-1CVE-2020-8284
curlUbuntu
Fixed in:7.35.0-1ubuntu2.20+esm6USN-4665-2
Fixed in:7.47.0-1ubuntu2.18USN-4665-1
Fixed in:7.58.0-2ubuntu3.12USN-4665-1
Fixed in:7.68.0-1ubuntu2.4USN-4665-1
libcurl3Ubuntu
Fixed in:7.35.0-1ubuntu2.20+esm6USN-4665-2
Fixed in:7.47.0-1ubuntu2.18USN-4665-1
libcurl3-gnutlsUbuntu
Fixed in:7.35.0-1ubuntu2.20+esm6USN-4665-2
Fixed in:7.47.0-1ubuntu2.18USN-4665-1
Fixed in:7.58.0-2ubuntu3.12USN-4665-1
Fixed in:7.68.0-1ubuntu2.4USN-4665-1
libcurl3-nssUbuntu
Fixed in:7.35.0-1ubuntu2.20+esm6USN-4665-2
Fixed in:7.47.0-1ubuntu2.18USN-4665-1
Fixed in:7.58.0-2ubuntu3.12USN-4665-1
Fixed in:7.68.0-1ubuntu2.4USN-4665-1
libcurl4Ubuntu
Fixed in:7.58.0-2ubuntu3.12USN-4665-1
Fixed in:7.68.0-1ubuntu2.4USN-4665-1
UniversalForwarderWindows application
Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.
Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

3.85%probability of exploitation in 30 days
89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-24919High8.6100%KEV + Ransom-
CVE-2020-14181Medium5.3100%-Fix
CVE-2021-34429Medium5.399%-Fix
CVE-2018-11409Medium5.398%--
CVE-2021-41277Critical10.097%KEV-
CVE-2016-2183High7.596%-Fix
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CVE-2020-8284 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.