CVE intelligence and bounded remediation

CVE-2020-9363 — The Sophos AV parsing engine before 2020-01-14 allows virus-detection bypass via a crafted ZIP archive

High CVSS 7.8

The Sophos AV parsing engine before 2020-01-14 allows virus-detection bypass via a crafted ZIP archive. This affects Endpoint Protection, Cloud Optix, Mobile, Intercept X Endpoint, Intercept X for Server, and Secure Web Gateway. NOTE: the vendor feels that this does not apply to endpoint-protection products because the virus would be detected upon extraction.

Severity
High
CVSS
7.8 (3.1)
Published
2020-02-24
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-436

Affected products

  • sophos / cloud_optix
  • sophos / endpoint_protection
  • sophos / intercept_x_endpoint
  • sophos / intercept_x_for_server
  • sophos / mobile
  • sophos / secure_web_gateway

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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