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VulnerabilityPublished Updated

CVE-2023-42561: Samsung Mobile Devices · Out-of-bounds Write

Affects Samsung Mobile DevicesSource CVE Database V5

0

Not known to be exploited · CVSS 7.1 High.

Data as of 26 Oct 2026, 12:29 UTC

CVSS 3.1 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Dec 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

European organizations should prioritize deploying the SMR December 2023 Release 1 update or later on all Samsung Mobile Devices to remediate this vulnerability. Given the physical access requirement, organizations should also strengthen physical security controls around mobile devices, including enforcing strict device handling policies, using secure storage when devices are not in use, and employing device tracking and remote wipe capabilities. Endpoint management solutions should be used to monitor device compliance and automate patch deployment. Additionally, organizations should educate employees about the risks of device loss or theft and implement multi-factor authentication and strong encryption to mitigate data exposure if devices are compromised. For high-risk environments, consider using hardware-based security modules or trusted platform modules (TPMs) to enhance bootloader integrity verification. Regular audits and incident response plans should include scenarios involving physical device compromise to ensure rapid detection and containment.

Description

Heap out-of-bounds write vulnerability in bootloader prior to SMR Dec-2023 Release 1 allows a physical attacker to execute arbitrary code.

References

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