# Dell Client Platform BIOS contains a Weak Encoding for Password vulnerability.

CVE record · `CVE-2026-40639`

- **Identifiers:** `CVE-2026-40639`
- **State:** Confirmed
- **Severity:** CVSS 5.7 Medium
- **Critical:** No
- **CNA:** dell
- **Weakness (CWE):** [CWE-261](https://cwe.mitre.org/data/definitions/261.html)
- **Tags:** [CWE-261](https://agentprime.io/advisories/tag/cwe-261.md)
- **Technologies:** [Dell Edge Gateway 3000](https://agentprime.io/advisories/technology/dell-edge-gateway-3000.md) · [Dell Edge Gateway 5000](https://agentprime.io/advisories/technology/dell-edge-gateway-5000.md) · [DELL EMBEDDED PC 3000](https://agentprime.io/advisories/technology/dell-embedded-pc-3000.md) · [DELL EMBEDDED PC 5000](https://agentprime.io/advisories/technology/dell-embedded-pc-5000.md) · [Dell Precision 3630 Tower](https://agentprime.io/advisories/technology/dell-precision-3630-tower.md) · [Dell Precision 3930 Rack](https://agentprime.io/advisories/technology/dell-precision-3930-rack.md) · [Dell Latitude 7220 Rugged Extreme](https://agentprime.io/advisories/technology/dell-latitude-7220-rugged-extreme.md) · [Dell Latitude Rugged 5420](https://agentprime.io/advisories/technology/dell-latitude-rugged-5420.md) · [Dell Latitude Rugged 5424](https://agentprime.io/advisories/technology/dell-latitude-rugged-5424.md) · [Dell Latitude Rugged 7220EX](https://agentprime.io/advisories/technology/dell-latitude-rugged-7220ex.md) · [Dell Latitude Rugged 7424](https://agentprime.io/advisories/technology/dell-latitude-rugged-7424.md)
- **Published:** 9 Jun 2026
- **Updated:** 9 Jun 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: dell) at 9 Jun 2026, 18:04 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.

## Affected products, as the CNA wrote them

- Vendor: Dell. Product: Dell Edge Gateway 3000.
  - affected: `before 1.26.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Dell Edge Gateway 5000.
  - affected: `before 1.36.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: DELL EMBEDDED PC 3000.
  - affected: `before 1.32.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: DELL EMBEDDED PC 5000.
  - affected: `before 1.33.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Dell Precision 3630 Tower.
  - affected: `before 2.40.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Dell Precision 3930 Rack.
  - affected: `before 2.43.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Latitude 7220 Rugged Extreme.
  - affected: `before 1.51.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Latitude Rugged 5420.
  - affected: `before 1.42.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Latitude Rugged 5424.
  - affected: `before 1.42.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Latitude Rugged 7220EX.
  - affected: `before 1.51.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Latitude Rugged 7424.
  - affected: `before 1.42.0` (semver)
  - Other versions: unaffected
- Vendor: Dell. Product: Precision 3930 Rack.
  - affected: `before 2.43.0` (semver)
  - Other versions: unaffected

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0019, the 8th percentile, on 5 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 9 Jun 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-40639](https://www.cve.org/CVERecord?id=CVE-2026-40639)
- [NVD: CVE-2026-40639](https://nvd.nist.gov/vuln/detail/CVE-2026-40639)

### References from the CNA

- <https://www.dell.com/support/kbdoc/en-us/000453482/dsa-2026-197> (vendor-advisory)

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-2026-40639>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-40639/>. Everything for agents: <https://agentprime.io/llms.txt>.