CVE-2026-40464Network attack vector

Victim-browser script execution via unencoded workflow content

Published Aug 31, 2026 · Updated Aug 31, 2026

Stored XSS in Nokia Network Services Platform 22.3 through 25.11 allows remote authenticated users to run code in another user's browser. The workflow application stores user-controlled content without sufficient validation or output encoding, then renders it to another user. Exploitation requires an authenticated account with workflow access and a second user to view the stored content, exposing that user's browser session to script actions.

CVSS severity8.2
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Nokia Network Services Platform 22.3 through 25.11 allows remote authenticated users to run code in another user's browser. The workflow application stores user-controlled content without sufficient validation or output encoding, then renders it to another user. Exploitation requires an authenticated account with workflow access and a second user to view the stored content, exposing that user's browser session to script actions.

The record

CVE
CVE-2026-40464
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
Nokia
Product
Network Services Platform
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=22.11
  2. Affected versionversion=22.3
  3. Affected versionversion=22.6
  4. Affected versionversion=22.9
  5. Affected versionversion=23.11
  6. Affected versionversion=23.4
  7. Affected versionversion=23.8
  8. Affected versionversion=24.11
  9. Affected versionversion=24.4
  10. Affected versionversion=24.8
  11. Affected versionversion=25.11
  12. Affected versionversion=25.4
  13. Affected versionversion=25.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nokia · Network Services Platformversion=22.11; version=22.3; version=22.6; version=22.9; version=23.11; version=23.4; version=23.8; version=24.11; version=24.4; version=24.8; version=25.11; version=25.4; version=25.8

Published CVSS scores

8.2NokiaCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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