CVE-2025-49494Network attack vector

Unauthenticated denial of service via 5G packet

Published Nov 4, 2025 · Updated Nov 4, 2025

Denial of service in Samsung Exynos NRMM processing allows remote attackers to interrupt modem service via a 5G packet. The NRMM component incorrectly handles a 5G New Radio Mobility Management packet, but Samsung has not disclosed the specific parsing or state-management error. The affected Exynos 2100, 1280, 2200, 1330, 1380, 1480, 9110, and Modem 5123 process the packet without authentication, and the reported consequence is service interruption only.

CVSS severity7.5
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Samsung Exynos NRMM processing allows remote attackers to interrupt modem service via a 5G packet. The NRMM component incorrectly handles a 5G New Radio Mobility Management packet, but Samsung has not disclosed the specific parsing or state-management error. The affected Exynos 2100, 1280, 2200, 1330, 1380, 1480, 9110, and Modem 5123 process the packet without authentication, and the reported consequence is service interruption only.

The record

CVE
CVE-2025-49494
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

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

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499Endpoint Denial of Service

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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