CVE-2021-25355: samsung mobile samsung notes Improper Authorization
CVSS: 7.8v3.1HighModified
Published 25-03-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-25355 is a high (CVSS 7.8) Improper Authorization vulnerability in samsung mobile samsung notes. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.6% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.22%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-03-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Using unsafe PendingIntent in Samsung Notes prior to version 4.2.00.22 allows local attackers unauthorized action without permission via hijacking the PendingIntent.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 5.5–7.8
- CVE.orgCNA5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
+0.01 pp
From 0.21% on 18-09-2026
18-09-202618-10-2026
EPSS score0.22%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-285Improper AuthorizationThe product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
- CWE-276Incorrect Default PermissionsDuring installation, installed file permissions are set to allow anyone to modify those files.
Affected systems
Samsung1 product
- notes< 4.2.00.22
Samsung mobile1 product
- samsung notes≥ unspecified, < 4.2.00.22
2 vendors · 2 products