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PatchSiren cyber security CVE debrief

CVE-2019-16256 SIMalliance CVE debrief

CVE-2019-16256 is a command injection vulnerability in SIMalliance Toolbox Browser. CISA included it in the Known Exploited Vulnerabilities catalog, which makes it a high-priority remediation item for any environment using the affected product. The official CISA guidance is to apply updates per vendor instructions.

Vendor
SIMalliance
Product
Toolbox Browser
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 that use SIMalliance Toolbox Browser, along with teams responsible for vulnerability management, endpoint security, and patch compliance. Because this CVE is in CISA KEV, it should be treated as a priority even without a published CVSS score in the supplied corpus.

Technical summary

The supplied records identify the issue as a command injection vulnerability affecting SIMalliance Toolbox Browser. The CISA KEV entry confirms it as a known exploited vulnerability and directs remediation by applying vendor updates. No additional technical details, exploit conditions, or affected-version data are present in the provided source corpus.

Defensive priority

High. CISA KEV inclusion indicates known exploitation and a remediation deadline was set (2022-05-03 in the supplied timeline). Prioritize identification of any installed instances and remove exposure quickly through vendor-approved updates.

Recommended defensive actions

  • Inventory systems to determine whether SIMalliance Toolbox Browser is present anywhere in the environment.
  • Apply the vendor-recommended updates referenced by CISA as soon as possible.
  • If immediate patching is not possible, reduce exposure by isolating or restricting access to affected systems until remediation is complete.
  • Verify remediation by rescanning assets and confirming the vulnerable product version is no longer deployed.
  • Track the CVE in vulnerability management and exception workflows until closure.

Evidence notes

Facts are limited to the supplied CISA KEV record and official reference links. The corpus identifies the vulnerability as a command injection issue in SIMalliance Toolbox Browser, lists it as CISA KEV, and instructs users to apply updates per vendor instructions. No CVSS score, affected version range, exploitation chain, or vendor advisory text was included in the provided source item.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-16256 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-16256

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

  • CVE-2019-16256 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-16256

    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.