Resource exhaustion in Netapp Hci_compute_node_firmware

CVE-2021-3733

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 authe…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.047 (90.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-3733?
CVE-2021-3733 is a medium-severity vulnerability in Netapp Hci_compute_node_firmware, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2022-03-10.
How severe is CVE-2021-3733?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-3733 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.