CVE-2024-39890Network attack vector

Memory corruption via unchecked Call Control length

Published Dec 2, 2024 · Updated Dec 3, 2024

Out-of-bounds write in Samsung Exynos baseband software allows remote attackers to corrupt memory via crafted Call Control input. The baseband trusts the length specified by the CC (Call Control) layer without adequately checking it before writing to a destination buffer. The network path requires no authentication or user interaction, but public records do not disclose the crafted message format or any resulting code-execution capability.

CVSS severity8.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Samsung Exynos baseband software allows remote attackers to corrupt memory via crafted Call Control input. The baseband trusts the length specified by the CC (Call Control) layer without adequately checking it before writing to a destination buffer. The network path requires no authentication or user interaction, but public records do not disclose the crafted message format or any resulting code-execution capability.

The record

CVE
CVE-2024-39890
Published
Dec 2, 2024
Updated
Dec 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 3, 2024Record 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

8.1MITRECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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-787Out-of-bounds Write

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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