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PatchSiren cyber security CVE debrief

CVE-2025-70819 Zettlab CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-09-13T19:16:52.850Z and has not been modified since then. The vulnerability affects Zettlab D6 Ultra before version 1.7.0, allowing mounting of /etc/passwd and /etc/shadow in a container via '..' manipulations in a compose file. This could lead to unauthorized access to sensitive system files. Defenders should assess exposure and prioritize verification of compose files for potential vulnerabilities.

Vendor
Zettlab
Product
D6 Ultra
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-13
Original CVE updated
2026-09-22
Advisory published
2026-09-13
Advisory updated
2026-09-22

Who should care

Defenders responsible for container deployments using Zettlab D6 Ultra before version 1.7.0 should assess exposure and prioritize verification of compose files for potential vulnerabilities.

Why it matters

Defenders should prioritize verifying exposure in container deployments using Zettlab D6 Ultra before version 1.7.0, especially where user input is involved in volume mounts, to prevent potential unauthorized access to sensitive system files.

  • Potential unauthorized access to sensitive system files
  • Verification of compose files for '..' manipulations is necessary
  • Update to version 1.7.0 or later may be required

Technical summary

The vulnerability allows mounting /etc/passwd and /etc/shadow in a container via '..' manipulations in a compose file, potentially leading to unauthorized access to sensitive system files in Zettlab D6 Ultra before version 1.7.0. This could occur when user input is involved in volume mounts, especially in container deployments. The CVE record indicates that the NVD entry is currently Deferred.

Defensive priority

Defenders should prioritize verifying exposure in container deployments using Zettlab D6 Ultra before version 1.7.0, especially where user input is involved in volume mounts.

Recommended defensive actions

  • Verify container deployments using Zettlab D6 Ultra before version 1.7.0 for potential exposure
  • Review compose files for '..' manipulations in volume mounts
  • Update to version 1.7.0 or later if possible

Evidence notes

The CVE record indicates that Zettlab D6 Ultra before 1.7.0 allows mounting /etc/passwd and /etc/shadow in a container via '..' manipulations in a compose file. The NVD entry is currently Deferred.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-70819 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-70819

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

  • CVE-2025-70819 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-70819

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

Supplemental references

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.