CVE-2021-25397

MEDIUMNVD 6.85.5▼

6.8

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.

CVSS v3: 6.8
EG Score: 5.5(medium)
EPSS: 5.7%
KEV: Not listed

Published

June 11, 2021

Last Modified

November 21, 2024

References (4)

mobilehttps://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
mobilehttps://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5
af854a3a-2127-422b-91ae-364da2661108https://blog.oversecured.com/Two-weeks-of-securing-Samsung-devices-Part-1/
af854a3a-2127-422b-91ae-364da2661108https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=5

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 15:03 UTCEG score recompute
2026-05-26 15:03 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-25397?

CVE-2021-25397 is a medium vulnerability published on June 11, 2021. 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.

When was CVE-2021-25397 disclosed?

CVE-2021-25397 was first published in the National Vulnerability Database on June 11, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-25397 actively exploited?

CVE-2021-25397 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-25397?

CVE-2021-25397 has a CVSS v3 base score of 6.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.5.

How do I remediate CVE-2021-25397?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25397, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-25397

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CVE-2021-25397

📅 Published

🔄 Last Modified

🔗 References (4)