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01 Record

CVE-2023-42561

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

HighPUBLISHEDCNA: SamsungMobile
CNA base score7.1 CVSS v3.xCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.7% of scored records. A rank, not a probability.
NVD base score
6.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-12-05 02:44Z2 YR AGO
Last updated
2025-05-29 13:34Z1 YR AGO
Reserved
2023-09-11
Assigning CNA
SamsungMobile
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
55d2fb5795c10ed317efb912eb7ee22e13f8292d57d9b096a19b0224ebf3dbf3

05 Affected products

VendorProductVersionsPlatforms
Samsung MobileSamsung Mobile DevicesNot specified—

06 References