CVE-2025-43706Network attack vector

Service interruption via mishandled RRC packets

Published Jan 5, 2026 · Updated Jan 5, 2026

Denial of service in affected Samsung Exynos processors and modems allows remote attackers to interrupt service via RRC packets. Samsung states only that the L2 component incorrectly handles RRC packets and has not disclosed the exact parsing or validation error. Network access to the RRC interface requires neither authentication nor user interaction; the reported consequence is availability loss only.

CVSS severity7.5
High
EPSS probability0.32%
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 affected Samsung Exynos processors and modems allows remote attackers to interrupt service via RRC packets. Samsung states only that the L2 component incorrectly handles RRC packets and has not disclosed the exact parsing or validation error. Network access to the RRC interface requires neither authentication nor user interaction; the reported consequence is availability loss only.

The record

CVE
CVE-2025-43706
Published
Jan 5, 2026
Updated
Jan 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1642
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 5, 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

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 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-400Uncontrolled Resource Consumption
T1642Endpoint 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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