How severe is CVE-2021-3485?

CVE-2021-3485 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3485 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3485?

CVE-2021-3485 affects Bitdefender Endpoint Security Tools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3485?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-3485 published?

CVE-2021-3485 was published on 2021-05-24 and last updated on 2026-06-17.

CVE-2021-3485

CVE-2021-3485 is a medium-severity vulnerability in Bitdefender Endpoint Security Tools with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-494.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
CVSS v2: 6.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-494
Affected product: Bitdefender Endpoint Security Tools
Published: 2021-05-24
Last modified: 2026-06-17

Description

An Improper Input Validation vulnerability in the Product Update feature of Bitdefender Endpoint Security Tools for Linux allows a man-in-the-middle attacker to abuse the DownloadFile function of the Product Update to achieve remote code execution. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.2.21.155.

Frequently asked questions

What is CVE-2021-3485?: An Improper Input Validation vulnerability in the Product Update feature of Bitdefender Endpoint Security Tools for Linux allows a man-in-the-middle attacker to abuse the DownloadFile function of the Product Update to achieve remote code execution. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.2.21.155.
How severe is CVE-2021-3485?: CVE-2021-3485 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3485 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3485?: CVE-2021-3485 affects Bitdefender Endpoint Security Tools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3485?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3485 published?: CVE-2021-3485 was published on 2021-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bitdefender:endpoint_security_tools:*:*:*:*:*:linux:*:*

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