Page generated: 09 Nov 2026, 13:07 UTC
CVE-2023-21674
Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
CVSS 8.8 (HIGH) KEV: KNOWN CATALOG
Attention and evidence
HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.5/10
General review priority; not probability
Evidence confidence: Exploitation recorded
Sources: 12 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
The Hacker News
Press · 09 Sep 2026, 07:00 · Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days - The Hacker News
SecurityWeek
Press · 08 Sep 2026, 07:00 · Microsoft Patches Record 974 Vulnerabilities, Including Two Exploited Zero-Days - SecurityWeek
gendigital.com
Press · 09 Feb 2023, 08:00 · Avast Q4/2022 threat report - gendigital.com
Check Point Research
Press · 16 Jan 2023, 08:00 · 16th January – Threat Intelligence Report - Check Point Research
TechTarget
Press · 11 Jan 2023, 08:00 · Microsoft resolves Windows zero-day on January Patch Tuesday - TechTarget
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 8.5 (2026-11-02 15:13). The curve appears once the score changes.
Public exploit evidence
0
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 8.8; EPSS 34.2%
- 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 13:58:49.717973+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z
Source event timeline
Published
10 Jan 2023, 00:00
Added to the CISA KEV catalog
10 Jan 2023, 00:00
First press mention
10 Jan 2023, 08:00
Latest press mention
09 Sep 2026, 07:00
Score calculated
05 Nov 2026, 13:58