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CVE-2026-45498

Uncontrolled Resource Consumption — is CVE-2026-45498real, exploitable, or a false positive? Here's the community ground truth.

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Medium · CVSS 4EPSS 2.5%CISA KEVCWE-400 · Uncontrolled Resource Consumption

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Microsoft Defender Denial of Service Vulnerability

NVD only has a brief summary for this one — the community fills in the real-world detail below.

References

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: High (High 3) — CVSS base score 4

Practitioners rate this higher than its CVSS — treat with extra caution.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Priya NairCurated

    Microsoft Defender Denial of Service Vulnerability — Microsoft Defender contains an unspecified vulnerability that allows for denial of service. Listed in the CISA KEV catalog (added 2026-05-20) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~3%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Diego RamírezCurated

    Required action for Microsoft Defender: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2026-06-03. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Related CVEs

Same weakness — CWE-400 · Uncontrolled Resource Consumption.