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PatchSiren cyber security CVE debrief

CVE-2021-36380 Sunhillo CVE debrief

CVE-2021-36380 is a Sunhillo SureLine OS command injection vulnerability that CISA added to its Known Exploited Vulnerabilities catalog. Because it is listed in KEV, defenders should treat it as an urgent remediation item and follow the vendor’s mitigation guidance. If mitigations are not available, CISA’s guidance is to discontinue use of the product.

Vendor
Sunhillo
Product
SureLine
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2024-03-05
Original CVE updated
2024-03-05
Advisory published
2024-03-05
Advisory updated
2024-03-05

Who should care

Security teams, asset owners, and operations staff responsible for Sunhillo SureLine deployments should prioritize this issue immediately, especially environments exposed to production or network-connected systems.

Technical summary

The supplied authoritative sources identify the issue as an OS command injection vulnerability in Sunhillo SureLine. The CISA KEV entry confirms the vulnerability is known to be exploited and provides remediation urgency, but the provided sources do not include version ranges, attack preconditions, authentication requirements, or a CVSS score.

Defensive priority

High — KEV-listed and therefore urgent to remediate or mitigate promptly.

Recommended defensive actions

  • Check whether Sunhillo SureLine is deployed in your environment and identify affected instances.
  • Follow the vendor’s mitigation instructions referenced by CISA.
  • Apply mitigations as soon as possible; if mitigations are unavailable, discontinue use of the product per CISA guidance.
  • Prioritize exposure reduction and compensating controls until remediation is complete.
  • Track the CISA KEV due date of 2024-03-26 for remediation planning and escalation.

Evidence notes

This debrief uses only the supplied authoritative sources: the CISA KEV entry, the official CVE record, and the official NVD record. The sources confirm the CVE ID, vendor/product, OS command injection wording, KEV status, date added (2024-03-05), due date (2024-03-26), and that known ransomware campaign use is listed as unknown. No additional technical details such as affected versions, exploit prerequisites, or fix specifics were provided in the corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2021-36380 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2021-36380

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

  • CVE-2021-36380 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2021-36380

    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.