# CVE-2026-86383: CVE-2026-86383

Status: published. Published: 2026-10-28. Updated: 2026-11-03.

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Dell / PowerProtect Data Domain: ≥ 0; < 8.9.0.0 or later (affected, semver); ≥ 0; < 8.3.1.50 or later (affected, semver); ≥ 0; < 8.6.1.30 or later (affected, semver). Source: CNA: dell

## Severity and prioritization

- CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N; source: CNA: dell

- CISA KEV: No listing in collected sources

- EPSS: 0.46% as of 2026-11-02; percentile 39.83%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities (CNA: dell; vendor-advisory)

## Provenance

- CNA: dell: https://www.cve.org/CVERecord?id=CVE-2026-86383; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-86383; retrieved 2026-11-03; source updated Not reported

Revision: d5d78d6f861331c58bd82abaf88bcf23e3ac8a3e74219dea0be2cbaa53f5e7a6

Canonical: https://y2.dev/cve/CVE-2026-86383

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.