CVE-2025-21063VulnerabilityPublished 10 Oct 2025

CVE-2025-21063: Samsung Voice Recorder · Improper Access Control

Affects Samsung Voice RecorderSource CVE Database V5

Not known to be exploited · CVSS 4.6 Medium : upgrade to 21.5.73.12 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

4.6Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 21.5.73.12

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

Attack Vector: Physical
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Physical: The attack requires the attacker to physically touch or manipulate the vulnerable component. Physical interaction may be brief or persistent.
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Samsung Voice Recorder to 21.5.73.12.

Affected software

Product	Affected	Fixed in
Samsung Mobile Samsung Voice Recorder	Affected <21.5.73.12	Fixed in 21.5.73.12

AI-suggested

1. 2. Enforce strict device lock policies, including strong PINs, passwords, or biometric authentication, to reduce the risk of physical access exploitation. 3. Disable or restrict lock screen access to apps and files where possible via device management policies. 4. Educate employees on the risks of leaving devices unattended or unlocked in public or insecure locations. 5. Use mobile device management (MDM) solutions to monitor and control app versions and enforce security configurations. 6. Consider encrypting sensitive voice recordings within the app or using secure containers to add an additional layer of protection. 7. Regularly audit and review device security settings and app permissions to ensure compliance with organizational security policies.

Description

Improper access control in Samsung Voice Recorder prior to version 21.5.73.12 in Android 15 and 21.5.81.40 in Android 16 allows physical attackers to access recording files on the lock screen.

Impact

For European organizations, this vulnerability poses a risk of sensitive information exposure through unauthorized access to voice recordings on Samsung mobile devices. Industries such as finance, legal, healthcare, and government, which may rely on voice recordings for meetings, interviews, or evidence, could suffer confidentiality breaches if devices are lost, stolen, or accessed by unauthorized personnel. The impact is primarily on confidentiality, with no direct effect on data integrity or device availability. Since exploitation requires physical access to the locked device but no authentication, the threat is significant in scenarios where devices are unattended or stolen. This could lead to regulatory compliance issues under GDPR due to unauthorized disclosure of personal or sensitive data. The medium severity score indicates moderate urgency, but organizations should prioritize patching to prevent potential data leaks and reputational damage.

CWE-284Improper Access Control (opens in a new tab)
Pillar weaknessCWE Top 25 (2025): #19OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
Architecture and Design · Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and Design · Separation of Privilege
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
OWASP Cheat Sheets
Docker Security (opens in a new tab)
Third Party Javascript Management (opens in a new tab)
Virtual Patching (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V1.4.4 (opens in a new tab)
V1.4.5 (opens in a new tab)
V1.10.1 (opens in a new tab)
Attack patterns
Embedding Scripts within Scripts (opens in a new tab)
Modification of Windows Service Configuration (opens in a new tab)
Malicious Root Certificate (opens in a new tab)
Intent Spoof (opens in a new tab)
WebView Exposure (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

security.samsungmobile.com/serviceWeb.smsb?year=2025&month=10 (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Oct 2025, 06:49 UTC

WeaknessesCWE-284

Technical details

References

Community reviews

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