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PatchSiren cyber security CVE debrief

CVE-2020-12271 Sophos CVE debrief

CVE-2020-12271 is a Sophos SFOS SQL injection vulnerability that CISA lists in its Known Exploited Vulnerabilities catalog. Because it is in KEV and marked with known ransomware campaign use, defenders should treat it as a high-priority remediation item and apply Sophos updates per vendor instructions.

Vendor
Sophos
Product
SFOS
CVSS
CRITICAL 10
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

Sophos SFOS administrators, network security teams, vulnerability management teams, and incident responders responsible for internet-facing or broadly deployed Sophos firewall appliances.

Technical summary

The available source corpus identifies the issue as a SQL injection vulnerability in Sophos SFOS. The CISA KEV entry indicates it is a known exploited vulnerability and notes known ransomware campaign use. No additional technical details, affected versions, or exploit conditions were provided in the supplied sources.

Defensive priority

High. CISA has included this CVE in KEV, and the entry explicitly notes known ransomware campaign use. Systems running Sophos SFOS should be prioritized for patching or vendor-directed mitigation.

Recommended defensive actions

  • Apply updates per Sophos vendor instructions as directed by CISA KEV.
  • Inventory Sophos SFOS deployments and identify any exposed or internet-facing systems.
  • Prioritize remediation in vulnerability management and change-control queues.
  • Validate that remediation was completed and confirm affected systems are no longer vulnerable.
  • Monitor for suspicious activity on Sophos SFOS devices pending remediation.

Evidence notes

Supported by the supplied CISA KEV source item: vendorProject Sophos, product SFOS, vulnerabilityName Sophos SFOS SQL Injection Vulnerability, dateAdded 2021-11-03, dueDate 2022-05-03, knownRansomwareCampaignUse Known, and requiredAction Apply updates per vendor instructions. The CVE and KEV dates provided are both 2021-11-03. No CVSS score or version scope was supplied in the corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2020-12271 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2020-12271

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

  • CVE-2020-12271 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2020-12271

    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.