CVE-2025-49152Network attack vector

Persistent system access via non-expiring JWTs

Published Jun 25, 2025 · Updated Jul 17, 2025

Insufficient session expiration in MICROSENS NMP Web+ 3.2.5 and earlier allows remote attackers to retain system access through stale JWTs. The server issues JSON Web Tokens without an expiration, so an obtained token remains accepted beyond its intended session lifetime. Possession of a valid token enables continued authenticated access and integrity-impacting actions in NMP Web+.

CVSS severity8.7
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in MICROSENS NMP Web+ 3.2.5 and earlier allows remote attackers to retain system access through stale JWTs. The server issues JSON Web Tokens without an expiration, so an obtained token remains accepted beyond its intended session lifetime. Possession of a valid token enables continued authenticated access and integrity-impacting actions in NMP Web+.

The record

CVE
CVE-2025-49152
Published
Jun 25, 2025
Updated
Jul 17, 2025
Vendor
MICROSENS
Product
NMP Web+
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 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 <=Version 3.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MICROSENS · NMP Web+version=0 <=Version 3.2.5

Published CVSS scores

8.7ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA: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-613Insufficient Session Expiration
T1550.004Web Session Cookie

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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