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PatchSiren cyber security CVE debrief

CVE-2018-7600 Drupal CVE debrief

CISA added CVE-2018-7600 to the Known Exploited Vulnerabilities catalog on 2021-11-03 and listed remediation as due by 2022-05-03. The supplied sources identify it as a Drupal Core remote code execution vulnerability, and CISA also marks it as having known ransomware campaign use. For any environment running Drupal Core, this should be treated as an urgent patching and exposure-review item.

Vendor
Drupal
Product
Drupal Core
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

Organizations running Drupal Core, especially internet-facing websites; security operations teams; vulnerability management teams; incident responders; and any business unit relying on Drupal-hosted public content or services.

Technical summary

The supplied corpus describes this issue as a Drupal Core remote code execution vulnerability. CISA’s KEV listing indicates confirmed exploitation in the wild, and the catalog metadata also notes known ransomware campaign use. The corpus does not provide deeper exploit mechanics, so the defensive response should follow vendor update guidance and focus on rapid patching, exposure reduction, and compromise review.

Defensive priority

Critical: prioritize immediate remediation for any Drupal Core deployment, especially if externally reachable.

Recommended defensive actions

  • Apply Drupal vendor updates immediately, following the vendor’s instructions referenced by CISA.
  • Inventory all Drupal Core deployments to confirm which systems are affected.
  • Prioritize internet-facing Drupal instances for same-day remediation or containment.
  • Review logs and security telemetry for suspicious activity on systems that were unpatched while this vulnerability was actively exploited.
  • If patching is delayed, reduce exposure temporarily by restricting access and monitoring closely until updates are applied.
  • Investigate and escalate promptly if there are indicators of compromise, given the KEV listing and known ransomware campaign use.

Evidence notes

The debrief is based on the supplied CISA KEV source item and official CVE/NVD references. The source item metadata identifies the vulnerability as Drupal Core remote code execution, lists it in KEV, provides dateAdded 2021-11-03 and dueDate 2022-05-03, and marks knownRansomwareCampaignUse as Known. The NVD and CVE.org links are included as official reference points for the CVE identifier and vulnerability record. No exploit details beyond the supplied corpus were used.

Sources and references

Verified primary and authoritative sources

  • CVE-2018-7600 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2018-7600

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

  • CVE-2018-7600 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2018-7600

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

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

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.