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Page generated: 11 Nov 2026, 13:55 UTC

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CVE-2021-31201

Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability

CVSS 5.2 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

7.8/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 5.2: +0.78
Fresh EPSS: 2.62%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 11 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

BleepingComputer

Press · 27 Jul 2022, 07:00 · Microsoft: Windows, Adobe zero-days used to deploy Subzero malware - BleepingComputer

Microsoft

Press · 27 Jul 2022, 07:00 · Untangling KNOTWEED: European private-sector offensive actor using 0-day exploits - Microsoft

Qualys

Press · 22 Feb 2022, 08:00 · Managing CISA Known Exploited Vulnerabilities with Qualys VMDR - Qualys

Securelist

Press · 12 Aug 2021, 07:00 · IT threat evolution in Q2 2021. PC statistics - Securelist

CrowdStrike

Press · 10 Jun 2021, 07:00 · June 2021 Patch Tuesday: Updates and Analysis - CrowdStrike

See all 11 source documents

The Hacker News

Press · 09 Jun 2021, 07:00 · Update Your Windows Computers to Patch 6 New In-the-Wild Zero-Day Bugs - The Hacker News

BleepingComputer

Press · 08 Jun 2021, 07:00 · Microsoft June 2021 Patch Tuesday fixes 6 exploited zero-days, 50 flaws - BleepingComputer

Cisco Talos Blog

Press · 08 Jun 2021, 07:00 · Microsoft Patch Tuesday for June 2021 — Snort rules and prominent vulnerabilities - Cisco Talos Blog

mcpmag.com

Press · 08 Jun 2021, 07:00 · Four Dozen Vulnerabilities Patched in Microsoft's June Security Bundle - mcpmag.com

The Record from Recorded Future News

Press · 08 Jun 2021, 07:00 · Microsoft patches six Windows zero-days, including a commercial exploit - The Record from Recorded Future News

Sophos

Press · 08 Jun 2021, 07:00 · Six in-the-wild exploits patched in Microsoft’s June security fix release - Sophos

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 7.8 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 5.2; EPSS 2.6%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: local access, low privileges, no user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:26.907878+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

08 Jun 2021, 07:00

Published

08 Jun 2021, 22:46

Added to the CISA KEV catalog

03 Nov 2021, 00:00

Latest press mention

27 Jul 2022, 07:00

Score calculated

05 Nov 2026, 13:58