CVE-2021-35486Network attack vector

Configuration overwrite via unvalidated CSRF nonces

Published Mar 3, 2026 · Updated Mar 3, 2026

Cross-site request forgery in Nokia IMPACT through 19.11.2.10-20210118042150283 allows remote attackers to overwrite its configuration. The /ui/rest-proxy/entity/import endpoint accepts an import without validating the X-CSRF-NONCE header or CSRF-NONCE cookie. Exploitation requires an authenticated IMPACT user to submit the forged request through a browser, after which the imported data replaces the full application configuration.

CVSS severity8.1
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Nokia IMPACT through 19.11.2.10-20210118042150283 allows remote attackers to overwrite its configuration. The /ui/rest-proxy/entity/import endpoint accepts an import without validating the X-CSRF-NONCE header or CSRF-NONCE cookie. Exploitation requires an authenticated IMPACT user to submit the forged request through a browser, after which the imported data replaces the full application configuration.

The record

CVE
CVE-2021-35486
Published
Mar 3, 2026
Updated
Mar 3, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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