What is the CVSS score of CVE-2021-35485?

CVE-2021-35485 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

How to fix or mitigate CVE-2021-35485?

Within 24 hours: Identify and inventory all systems running affected versions and restrict network access to these systems where operationally feasible. Within 7 days: Implement compensating controls (WAF rules, input validation enforcement, disable file upload functionality if non-critical). Within 30 days: Develop and execute an upgrade plan to move to patched versions once available, coordinate with vendor for security updates, and establish a continuous monitoring program for exploitation attempts.

Impact CVE-2021-35485

HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2026-03-03 cve@mitre.org

File Upload Impact Nokia

8.0

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-434 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V5 - File Handling File type validation, storage isolation MITRE ATT&CK 2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 8.0 (HIGH). Attack vector: Adjacent Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication.
Exploit ScenarioDerived	An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Impact versions up to 19.11.2.10-20210118042150283 is affected by unrestricted upload of file with dangerous type (CVSS 8.0).

RemediationAI

Monitor vendor advisories for a patch. Validate file types by content. Store uploads outside web root.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affects Impact. The Applications component of Nokia IMPACT version through 19.11.2.10-20210118042150283 allows an authenticated user to arbitrarily upload server-side executable files via the /ui/rest-proxy/application fileupload parameter. This can occur during the adding of a new application, or during the editing of an existing one.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.0 HIGH

AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

The Applications component of Nokia IMPACT version through 19.11.2.10-20210118042150283 allows an authenticated user to arbitrarily upload server-side executable files via the /ui/rest-proxy/application fileupload parameter. This can occur during the adding of a new application, or during the editing of an existing one.

Executive ViewAI

Why It Matters

Systems running affected versions (up to 19.11.2.10-20210118042150283) are vulnerable to unrestricted file uploads that could allow attackers to execute arbitrary code and compromise system integrity. This vulnerability poses a direct threat to organizations using impacted versions, potentially enabling unauthorized access, data theft, and operational disruption without immediate patching options.

Business Impact: High

Compensating Controls

Implement Web Application Firewall (WAF) rules to restrict dangerous file types at the upload endpoint; disable file upload functionality if operationally non-critical; enforce strict input validation and file type whitelisting; implement network segmentation to limit lateral movement from compromised systems; enable enhanced logging and monitoring for upload activity; require manual approval for file uploads; consider migrating to unaffected product versions if available.

Threat Intelligence Overview

EPSS Score

0.0%

Top 92% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.