CVE-2021-3733Not scoredCWE-400

CVE-2021-3733: python vulnerability

Python · python

Affected: python · Exploitation: possible (1 to 10%)

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

4.8%probability of exploitation in the next 30 days

92nd percentile

050100

Higher than 92% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.

Affected products1

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

pythonFixed in python v3.6.14, python v3.7.11, python v3.8.10, py…

On the Atlas

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Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Uncontrolled Resource Consumption · Denial of Service
Vendor: Python
Published: March 2022
Band: Possible (1 to 10%), March 2022

CoverageNo articles yet

No CyberSIXT article names CVE-2021-3733 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.