PatchSiren

PatchSiren cyber security CVE debrief

CVE-2021-25395 Samsung CVE debrief

CVE-2021-25395 affects Samsung Mobile Devices and is identified by CISA as a known exploited vulnerability. The source corpus does not provide a CVSS score or a detailed impact statement, but the KEV listing means defenders should treat it as an active risk and prioritize remediation using Samsung’s update guidance.

Vendor
Samsung
Product
Mobile Devices
CVSS
MEDIUM 6.4
CISA KEV
Listed
Original CVE published
2023-06-29
Original CVE updated
2023-06-29
Advisory published
2023-06-29
Advisory updated
2023-06-29

Who should care

Samsung mobile device administrators, enterprise mobility and endpoint security teams, and users or organizations that rely on Samsung mobile devices for managed or personal use.

Technical summary

The available official sources identify the issue as a race condition in Samsung Mobile Devices. CISA added the CVE to the Known Exploited Vulnerabilities catalog on 2023-06-29 and set a remediation due date of 2023-07-20. The corpus does not include deeper technical details about the vulnerable component, attack path, or impact, so the safest interpretation is that affected Samsung mobile devices should be updated according to vendor instructions as soon as possible.

Defensive priority

High. CISA KEV inclusion indicates known exploitation, so this should be prioritized ahead of routine patch work, especially in managed fleets and internet-connected mobile environments.

Recommended defensive actions

  • Apply Samsung updates according to vendor instructions as soon as they are available.
  • Verify which Samsung mobile device models and software versions in your environment are affected.
  • Track completion against the CISA KEV due date of 2023-07-20 for remediation planning.
  • If updates are unavailable for any deployed devices, discontinue use of the affected product as CISA recommends.
  • Review Samsung’s security update notice referenced in the CISA KEV notes and confirm remediation status across fleets.

Evidence notes

Evidence is limited to official sources in the supplied corpus: the CISA KEV entry identifies the product as Samsung Mobile Devices, the vulnerability type as a race condition, and marks it as known exploited with dateAdded 2023-06-29 and dueDate 2023-07-20. The corpus also includes official CVE.org and NVD links, but it does not provide CVSS scoring or a more detailed technical impact description.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-25395 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-25395

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2021-25395 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-25395

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.