CVE-2025-27259

Data exfiltration or redirection via undisclosed XSS

Published Oct 13, 2025 · Updated Oct 13, 2025

Cross-site scripting in Ericsson Network Manager before 25.2 allows remote authenticated users to exfiltrate limited data or redirect users. Ericsson has not disclosed the affected web component, input field, or operation that fails to neutralize user-controlled content. Exploitation requires low-privileged access from an adjacent network and active interaction by another user; impact is limited to data exposure or redirection.

CVSS severity2.4
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Ericsson Network Manager before 25.2 allows remote authenticated users to exfiltrate limited data or redirect users. Ericsson has not disclosed the affected web component, input field, or operation that fails to neutralize user-controlled content. Exploitation requires low-privileged access from an adjacent network and active interaction by another user; impact is limited to data exposure or redirection.

The record

CVE
CVE-2025-27259
Published
Oct 13, 2025
Updated
Oct 13, 2025
Vendor
Ericsson
Product
Ericsson Network Manager
Classifications
CWE-79
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 2025Record 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=0 <all versions prior to 25.2 changes=[{"at":"Version 25.2 or later","status":"unaffected"}]

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Ericsson · Ericsson Network Managerversion=0 <all versions prior to 25.2 changes=[{"at":"Version 25.2 or later","status":"unaffected"}]

Published CVSS scores

2.4EricssonCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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.

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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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