CVE-2023-30689

Local code execution via libsec-ril buffer overwrite

Published Aug 10, 2023 · Updated Oct 10, 2024

Out-of-bounds write in libsec-ril on Samsung Mobile Devices before SMR Aug-2023 Release 1 allows local users to execute arbitrary code. BuildOemEmbmsGetSigStrengthResponse writes past a buffer boundary while building an eMBMS signal-strength response. A local attacker who can reach the unprotected function can corrupt memory and run attacker-controlled code on the device.

CVSS severity7.8
High
EPSS probability0.19%
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 libsec-ril on Samsung Mobile Devices before SMR Aug-2023 Release 1 allows local users to execute arbitrary code. BuildOemEmbmsGetSigStrengthResponse writes past a buffer boundary while building an eMBMS signal-strength response. A local attacker who can reach the unprotected function can corrupt memory and run attacker-controlled code on the device.

The record

CVE
CVE-2023-30689
Published
Aug 10, 2023
Updated
Oct 10, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=SMR_Aug_2023_Release_1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=SMR_Aug_2023_Release_1

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.7Samsung MobileCVSS:3.1/AV:L/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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