# CVE-2026-86388: CVE-2026-86388

Status: published. Published: 2026-10-28. Updated: 2026-11-04.

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, 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. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Filesystem access for attacker.

## 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; < 7.13.1.90 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: 5.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N; source: CNA: dell

- CISA KEV: No listing in collected sources

- EPSS: 0.31% as of 2026-11-04; percentile 24.36%

- SSVC: exploitation none; automatable yes; 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-2026-86388; retrieved 2026-11-04; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-86388; retrieved 2026-11-04; source updated Not reported

Revision: b84c20bb566bc429c0434535550ae584f609aa3aed03f1bfcfd4ec0f7505a780

Canonical: https://y2.dev/cve/CVE-2026-86388

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

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