CVE-2021-33473

Name: CVE-2021-33473
Creator: NVD / NIST
Published: 2022-06-02T20:15:07.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.04%

Last modified Jun 17, 2026

CVE-2021-33473 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read and write arbitrary files when the verify_url option is disabled. This vulnerability is exploited via a crafted URL.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.

Description

An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read and write arbitrary files when the verify_url option is disabled. This vulnerability is exploited via a crafted URL.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.04%

59.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-88

Affected Software

Vendor	Product	Versions
Dragonfly Project	Dragonfly	1.3.0

References

https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5Patch, Third Party Advisory
https://github.com/markevans/dragonfly/issues/513Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220715-0004/Third Party Advisory
https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5Patch, Third Party Advisory
https://github.com/markevans/dragonfly/issues/513Issue Tracking, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220715-0004/Third Party Advisory

Timeline

Published: Jun 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33473?

How severe is CVE-2021-33473?

CVE-2021-33473 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33473?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-33473?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST