# An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

CVE record · `CVE-2021-25370`

- **Identifiers:** `CVE-2021-25370`
- **State:** Confirmed
- **Severity:** CVSS 6.1 Medium
- **Critical:** Yes: KEV
- **CNA:** Samsung Mobile
- **Weakness (CWE):** [CWE-703](https://cwe.mitre.org/data/definitions/703.html)
- **Tags:** [CWE-703](https://agentprime.io/advisories/tag/cwe-703.md)
- **Technologies:** [Samsung Mobile Devices](https://agentprime.io/advisories/technology/samsung-mobile-devices.md)
- **Published:** 26 Mar 2021
- **Updated:** 14 Jan 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Samsung Mobile) at 26 Mar 2021, 18:23 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Critical

Critical, because:

- In CISA’s KEV catalogue since 8 Nov 2022: it is known to be exploited.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Samsung Mobile. Product: Samsung Mobile Devices.
  - affected: `Selected O(8.X), P(9.0), Q(10.0), R(11.0) to before SMR Mar-2021 Release 1` (custom)

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 6.1 Medium, CVSS 3.1: `CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H`, from CNA (Samsung Mobile)

- **CISA KEV:** Listed since 8 Nov 2022: known to be exploited.
- **EPSS:** 0.0089, the 59th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 26 Mar 2021. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2021-25370](https://www.cve.org/CVERecord?id=CVE-2021-25370)
- [NVD: CVE-2021-25370](https://nvd.nist.gov/vuln/detail/CVE-2021-25370)

### References from the CNA

- <https://security.samsungmobile.com/securityUpdate.smsb> (confirm)
- <https://security.samsungmobile.com/>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2021-25370>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2021-25370/>. Everything for agents: <https://agentprime.io/llms.txt>.