VulnRadar

Data against noise.

Page generated: 11 Nov 2026, 01:27 UTC

← Dashboard

CVE-2021-34484

Windows User Profile Service Elevation of Privilege Vulnerability

CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.3/10

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: 21.83%: +0.11

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

BornCity

Press · 07 Jan 2023, 08:00 · 0patch secures Microsoft Edge for Windows 7/Server 2008/2012/R2 until Jan. 2025 - BornCity

BornCity

Press · 13 Oct 2022, 07:00 · Windows 7/Server 2008 R2 receive 0patch micropatches in 2023 and 2024 - BornCity

BornCity

Press · 22 Mar 2022, 07:00 · Lapsus$ allegedly publishes source code of Microsoft Azure, Bing and Cortana - BornCity

BleepingComputer

Press · 21 Mar 2022, 07:00 · Windows zero-day flaw giving admin rights gets unofficial patch, again - BleepingComputer

BornCity

Press · 03 Dec 2021, 08:00 · 0patch fixes InstallerTakeOver LPE 0-day vulnerability in WindowsBorn's Tech and Windows World - BornCity

See all 11 source documents

Forbes

Press · 13 Nov 2021, 08:00 · All Windows Versions Impacted By New Zero-Day Hack, 0patch Buys Time - Forbes

BleepingComputer

Press · 12 Nov 2021, 08:00 · Zero-day bug in all Windows versions gets free unofficial patch - BleepingComputer

Bitdefender

Press · 29 Oct 2021, 07:00 · Security Researcher Immediately Issues Bypass for Windows 0-Day Vulnerability Patch - Bitdefender

BleepingComputer

Press · 28 Oct 2021, 07:00 · All Windows versions impacted by new LPE zero-day vulnerability - BleepingComputer

Qualys

Press · 13 Aug 2021, 07:00 · Microsoft and Adobe Patch Tuesday (August 2021) - Microsoft 51 Vulnerabilities with 7 Critical, Adobe 29 Vulnerabilities - Qualys

Rapid7

Press · 11 Aug 2021, 07:00 · Patch Tuesday - August 2021 - Rapid7

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 8.3 (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 21.8%
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

11 Aug 2021, 07:00

Published

12 Aug 2021, 18:11

Added to the CISA KEV catalog

31 Mar 2022, 00:00

Latest press mention

07 Jan 2023, 08:00

Score calculated

05 Nov 2026, 13:58