CVE-2021-25397 json
An improper access control vulnerability in TelephonyUI prior to SMR MAY-2021 Release 1 allows local attackers to write arbitrary files of…
published 2021-06-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12293
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
An improper access control vulnerability in TelephonyUI prior to SMR MAY-2021 Release 1 allows local attackers to write arbitrary files of telephony process via untrusted applications.
Patch / fix
- Samsung Mobile Samsung Mobile Devices SMR MAY-2021 Release 1
Exploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.oversecured.com https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Samsung Mobile Samsung Mobile Devices
Classification
- Weakness
-
- CWE-926 Improper Export of Android Application Components
References
-
blog.oversecured.com
/Two-weeks-of-securing-Samsung-devices-Part-1/
exploit, third-party-advisory
-
security.samsungmobile.com
/securityUpdate.smsb?year=2021&month=5
vendor-advisory
Sources
- CVE List CVE-2021-25397
- NVD CVE-2021-25397
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