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PatchSiren cyber security CVE debrief

CVE-2019-0211 Apache CVE debrief

CVE-2019-0211 is identified in the supplied corpus as an Apache HTTP Server privilege escalation vulnerability and is listed by CISA in the Known Exploited Vulnerabilities (KEV) catalog. The safest response is to treat this as a high-priority patching item and apply Apache’s vendor updates as soon as possible. The source material provided here does not include exploit mechanics, affected versions, or workaround details, so defensive action should focus on inventory, patching, and validation.

Vendor
Apache
Product
HTTP Server
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2021-11-03
Original CVE updated
2021-11-03
Advisory published
2021-11-03
Advisory updated
2021-11-03

Who should care

Administrators and security teams responsible for Apache HTTP Server deployments, especially environments that depend on timely patching and systems exposed to higher operational risk if a privilege escalation issue is abused.

Technical summary

The supplied evidence identifies the issue as a privilege escalation vulnerability in Apache HTTP Server. CISA’s KEV metadata records the vendor as Apache, the product as HTTP Server, and the required action as applying updates per vendor instructions. No affected-version list, root-cause description, or exploit chain details are included in the provided source corpus.

Defensive priority

Urgent. A KEV listing means this CVE should be prioritized ahead of routine maintenance, with patching and validation completed as soon as operationally feasible.

Recommended defensive actions

  • Inventory all Apache HTTP Server deployments and confirm which systems are exposed to the vulnerable component.
  • Apply the vendor-recommended Apache HTTP Server security updates as directed by Apache.
  • Verify remediation by checking package or service versions after maintenance.
  • Prioritize internet-facing and business-critical hosts first if patch windows are constrained.
  • Track the CISA KEV due date metadata and ensure similar issues are escalated through an expedited patch workflow.

Evidence notes

CISA KEV metadata in the supplied source lists: vendorProject=Apache, product=HTTP Server, vulnerabilityName=Apache HTTP Server Privilege Escalation Vulnerability, dateAdded=2021-11-03, dueDate=2022-05-03, knownRansomwareCampaignUse=Unknown, and requiredAction='Apply updates per vendor instructions.' The source item also notes the NVD reference URL for CVE-2019-0211. No additional exploit or version data is present in the supplied corpus.

Official resources

This debrief is based only on the supplied CISA KEV source item and the official CVE/NVD links provided in the corpus. It avoids exploit details and affected-version claims because those details are not present in the supplied material.