VulnRadar

Data against noise.

Page generated: 11 Nov 2026, 05:26 UTC

← Dashboard

CVE-2021-33771

Windows Kernel Elevation of Privilege Vulnerability

CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.2/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 7.8: +1.17
Fresh EPSS: 10.17%: +0.05

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

Sources: 13 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

Qualys

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

SOC Prime

Press · 22 Jul 2021, 07:00 · DevilsTongue Spyware Detection - SOC Prime

Forbes

Press · 16 Jul 2021, 07:00 · New Windows 10 ‘Patch Tuesday’ Update Fixes 117 Security Flaws - Forbes

GIGAZINE

Press · 16 Jul 2021, 07:00 · Microsoft announces that Israeli private sector may have developed 'Devils Tongue' malware that exploits Windows zero-day vulnerabilities - GIGAZINE

CrowdStrike.com

Press · 15 Jul 2021, 07:00 · July 2021 Patch Tuesday: Updates and Analysis - CrowdStrike.com

See all 13 source documents

Microsoft

Press · 15 Jul 2021, 07:00 · Protecting customers from a private-sector offensive actor using 0-day exploits and DevilsTongue malware - Microsoft

The Citizen Lab

Press · 15 Jul 2021, 07:00 · Hooking Candiru: Another Mercenary Spyware Vendor Comes into Focus - The Citizen Lab

TechTarget

Press · 14 Jul 2021, 07:00 · Microsoft’s ‘PrintNightmare’ lingers, requires new patches - TechTarget

TechTarget

Press · 14 Jul 2021, 07:00 · 3 Windows zero-days fixed on July Patch Tuesday - TechTarget

The Record from Recorded Future News

Press · 14 Jul 2021, 07:00 · Windows spyware and zero-days linked to prodigious Israeli hack-for-hire company - The Record from Recorded Future News

Windows Central

Press · 13 Jul 2021, 07:00 · Windows 10 version 21H1 July Patch Tuesday: Vulnerability fixes galore - Windows Central

Cisco Talos Blog

Press · 13 Jul 2021, 07:00 · Microsoft Patch Tuesday for July 2021 — Snort rules and prominent vulnerabilities - Cisco Talos Blog

thezdi.com

Press · 13 Jul 2021, 07:00 · The July 2021 Security Update Review - thezdi.com

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 8.2 (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 7.8; EPSS 10.2%
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 13:58:27.921902+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

First press mention

13 Jul 2021, 07:00

Published

14 Jul 2021, 17:53

Added to the CISA KEV catalog

03 Nov 2021, 00:00

Latest press mention

22 Feb 2022, 08:00

Score calculated

05 Nov 2026, 13:58