CVE-2021-25337 (GCVE-0-2021-25337)
Vulnerability from cvelistv5 – Published: 2021-03-04 20:59 – Updated: 2025-10-21 23:25Summary
Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or write certain local files.
Severity
4.4 (Medium)
SSVC
Exploitation: active
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 21:26 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://security.samsungmobile.com/securityUpdate.smsb | x_refsource_CONFIRM |
| https://security.samsungmobile.com | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices |
Affected:
Selected P(9.0), Q(10.0), R(11.0) , < SMR Mar-2021 Release 1
(custom)
|
guessed |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 46ef5142-d1eb-448a-8ab1-f83b43d32d83
Exploited: Yes
Timestamps
First Seen: 2022-11-08
Asserted: 2022-11-08
Scope
Notes: KEV entry: Samsung Mobile Devices Improper Access Control Vulnerability | Affected: Samsung / Mobile Devices | Description: Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370. | Required action: Apply updates per vendor instructions. | Due date: 2022-11-29 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://security.samsungmobile.com/securityUpdate.smsb; https://nvd.nist.gov/vuln/detail/CVE-2021-25337
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-269 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Mobile Devices |
| Due Date | 2022-11-29 |
| Date Added | 2022-11-08 |
| Vendorproject | Samsung |
| Vulnerabilityname | Samsung Mobile Devices Improper Access Control Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 13:25 UTC
| Updated: 2026-02-06 07:53 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: b0dce965-5e15-440d-b5b4-d963c963fa59
Exploited: Yes
Timestamps
First Seen: 2022-11-08
Asserted: 2022-11-08
Scope
Notes: KEVIntel entry: Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or... | Affected: Samsung Mobile / Samsung Mobile Devices | CVSS: 4.4 (MEDIUM) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or... |
| Vendor | Samsung Mobile |
| Product | Samsung Mobile Devices |
| Added Date | 2022-11-08T00:00:00.000Z |
| Cvss Score | 4.4 |
| Epss Score | None |
| Cvss Severity | MEDIUM |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 11:14 UTC
| Updated: 2026-06-23 11:14 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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