Is CVE-2021-3554 in the CISA KEV catalog?

No. CVE-2021-3554 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3554?

CVE-2021-3554 has a CVSS v3 base score of 9.0 (CRITICAL).

What is the EPSS score for CVE-2021-3554?

CVE-2021-3554 has an EPSS score of 2.68% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3554?

Upgrade endpoint security tools to 7.1.2.33 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3554

CRITICALEPSS 84th pctl

9.0

CVSS v3

NVD

Description

Improper Access Control vulnerability in the patchesUpdate API as implemented in Bitdefender Endpoint Security Tools for Linux as a relay role allows an attacker to manipulate the remote address used for pulling patches. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender Unified Endpoint versions prior to 6.2.21.160. Bitdefender GravityZone versions prior to 6.24.1-1.

CWE-284Improper Access Control

How to fix

Remediation Available

endpoint security toolsNVD

Affected:>= 7.0.0.00, < 7.1.2.33Fixed in:7.1.2.33CVE-2021-3554derived from NVD

Affected:< 6.6.27.390Fixed in:6.6.27.390CVE-2021-3554derived from NVD

gravityzoneNVD

Affected:< 6.24.1-1Fixed in:6.24.1-1CVE-2021-3554derived from NVD

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

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.68%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Other references1

bitdefender.com

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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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 2024-11-21.