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PatchSiren cyber security CVE debrief

CVE-2019-0676 Microsoft CVE debrief

CVE-2019-0676 is a Microsoft Internet Explorer information disclosure vulnerability that CISA lists in its Known Exploited Vulnerabilities (KEV) catalog. The KEV entry indicates known exploitation and directs organizations to apply updates per vendor instructions. In the provided source corpus, CISA added the vulnerability on 2022-05-23 and set a remediation due date of 2022-06-13.

Vendor
Microsoft
Product
Internet Explorer
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-05-23
Original CVE updated
2022-05-23
Advisory published
2022-05-23
Advisory updated
2022-05-23

Who should care

Organizations that still use or support Microsoft Internet Explorer, especially security and endpoint teams responsible for patching, vulnerability management, and browser deprecation programs. Because the issue is in CISA’s KEV catalog, exposed systems should be treated as urgent remediation candidates.

Technical summary

The available source material identifies the issue as an information disclosure vulnerability in Microsoft Internet Explorer. The corpus does not provide exploit mechanics, affected versions, or CVSS details. What is clear from the official CISA KEV entry is that the vulnerability is known to be exploited and should be remediated according to vendor guidance.

Defensive priority

Urgent. CISA has listed this CVE in the Known Exploited Vulnerabilities catalog, which is a strong signal to prioritize patching and exposure reduction ahead of routine maintenance.

Recommended defensive actions

  • Apply Microsoft updates according to vendor instructions as soon as possible.
  • Prioritize all endpoints and servers that still rely on Internet Explorer for immediate remediation.
  • Verify whether Internet Explorer is enabled or accessible in your environment and remove or restrict it where possible.
  • Track remediation against the CISA KEV due date associated with this entry.
  • Confirm successful patching or mitigation across the full asset inventory, including legacy systems.

Evidence notes

This debrief is based only on the supplied source corpus and official links: the CISA KEV feed entry, the CISA Known Exploited Vulnerabilities catalog, the official CVE record, and the NVD detail page referenced by CISA. The corpus supports the CVE identifier, product/vendor attribution, KEV listing, dateAdded (2022-05-23), dueDate (2022-06-13), and the requiredAction text. It does not include exploit details, affected version ranges, or a CVSS score.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-0676 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-0676

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

  • CVE-2019-0676 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-0676

    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.