CVE-2025-20992VulnerabilityPublished 4 Jun 2025

CVE-2025-20992: Samsung Mobile Devices · Heap-based Buffer Overflow

Affects Samsung Mobile DevicesSource CVE Database V5

Not known to be exploited · CVSS 4.0 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

4.0Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

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

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

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
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 4 Jun 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 2026-10-26.

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

AI-suggested

To mitigate CVE-2025-20992, European organizations should: 1) Monitor Samsung’s official security advisories and promptly apply the SMR February 2025 Release 1 update or any subsequent patches addressing this vulnerability. 2) Enforce strict physical security controls to limit unauthorized local access to mobile devices, including secure storage and device lock policies. 3) Implement robust endpoint protection solutions capable of detecting and preventing local exploitation attempts or malware that could leverage this vulnerability. 4) Employ mobile device management (MDM) tools to enforce security policies, including restricting installation of untrusted applications that might exploit local vulnerabilities. 5) Conduct regular security awareness training for employees to recognize risks associated with device handling and local access threats. 6) Where feasible, disable or restrict camera subsystem access for applications that do not require it, reducing the attack surface. 7) Perform security audits and memory analysis on devices suspected of compromise to detect anomalous behavior related to memory corruption or information leakage.

Description

Out-of-bound read in libsecimaging.camera.samsung.so prior to SMR Feb-2025 Release 1 allows local attackers to read out-of-bounds memory.

Impact

For European organizations, the impact of CVE-2025-20992 primarily concerns confidentiality risks on Samsung Mobile devices used within corporate environments. Since the vulnerability requires local access, it is most relevant in scenarios where devices may be physically accessed by unauthorized personnel or where malware with local execution capabilities is present. The exposure of out-of-bounds memory could lead to leakage of sensitive information such as cryptographic keys, user data, or proprietary application data residing in memory buffers related to the camera subsystem. This could facilitate further attacks or data breaches. However, the lack of integrity and availability impact reduces the risk of service disruption or data manipulation. Organizations with mobile device management (MDM) policies that include Samsung devices should be aware of this vulnerability, especially in sectors with high data sensitivity such as finance, healthcare, and government. The medium severity rating suggests that while the threat is not critical, it should be addressed promptly to prevent potential escalation or chaining with other vulnerabilities.

CWE-122Heap-based Buffer Overflow (opens in a new tab)
Variant weaknessLikelihood of exploit: HighCWE Top 25 (2025): #16
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Pre-design: Use a language or compiler that performs automatic bounds checking.
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Forced Integer Overflow (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

security.samsungmobile.com/securityUpdate.smsb?year=2025&month=06 (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 5 Jul 2025, 23:57 UTC

WeaknessesCWE-122

Technical details

References

Community reviews

Related threats