CVE-2023-21494 | BDVDB-2026-201493 Detail

SamsungSamsung Mobile Devices

Description#

Potential buffer overflow vulnerability in auth api in mm_Authentication.c in Shannon baseband prior to SMR May-2023 Release 1 allows remote attackers to cause invalid memory access.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact low. Attack vector: network.

Weaknesses#

CWE-20 Improper Input Validation

References#

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=05

Exploit#

No public exploit known

History#

Version 12023-05-04Record published in the CVE List.
Version 22025-02-12Most recent update recorded in the CVE List.

Published

Published: 2023-05-04
Last modified: 2025-02-12

Vendor information

Vendor: Samsung
Product: Samsung Mobile Devices

All Samsung vulnerabilities

Score

5.6 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 51.9.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Input Validation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= Select devices using Exynos CP chipsets and < SMR May-2023 Release 1
Fixed
SMR May-2023 Release 1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.6 Medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).