What’s Vulnerable › Vulnerabilities

CVE-2021-25397

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-11 · updated 2026-06-17
• Weakness: CWE-926

Description

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.

Affected products

• Android: 9.0, 10.0, 11.0

References

• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5
• https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5

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