What is CVE-2021-3541?

CVE-2021-3541 is a medium-severity vulnerability in Netapp Active_iq_unified_manager, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 6.5/10. Published 2021-07-09.

How severe is CVE-2021-3541?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-3541 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Netapp Active_iq_unified_manager

CVE-2021-3541

A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.

EPSS: 0.019 (76.5th 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)

CWE-776 — Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion)

Public proof-of-concept exploits

References

secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3541?: CVE-2021-3541 is a medium-severity vulnerability in Netapp Active_iq_unified_manager, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 6.5/10. Published 2021-07-09.
How severe is CVE-2021-3541?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-3541 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.