Page generated: 11 Nov 2026, 09:34 UTC
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CVE-2026-85880

Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.

CVSS 7.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.6/10
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: 0.39%: +0.00

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

Sources: 26 documents and public datasets.

Hype components

Headline sample (25%)
10/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL6/100

Sources and documents

Help Net Security
Press · 09 Oct 2026, 07:00 · October 2026 Patch Tuesday forecast: Time for an Office cleanup - Help Net Security
The Hacker News
Press · 23 Sep 2026, 07:00 · Chinese Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy CLEANGULP Malware - The Hacker News
Arctic Wolf
Press · 15 Sep 2026, 07:00 · Microsoft Patch Tuesday Security Recap: September 2026 Edition - Arctic Wolf
Computerworld
Press · 14 Sep 2026, 07:00 · September Patch Tuesday: 963 CVEs, 2 exploited flaws, 1 message - Computerworld
SOC Prime
Press · 09 Sep 2026, 07:00 · CVE-2026-85880 & CVE-2026-81963 Windows Zero-Days - SOC Prime
See all 26 source documents
Infosecurity Magazine
Press · 09 Sep 2026, 07:00 · Microsoft Shatters Patch Tuesday Record With 974 CVE Fixes in September 2026 - Infosecurity Magazine
The Hacker News
Press · 09 Sep 2026, 07:00 · Microsoft Patches Record 974 Flaws, Including Two Exploited Windows Zero-Days - The Hacker News
The Hacker News
Press · 09 Sep 2026, 07:00 · Four Spy Groups Used the Same Chrome and Windows Exploit Kit Within a Week - The Hacker News
Security Affairs
Press · 09 Sep 2026, 07:00 · Microsoft’s Biggest Patch Tuesday: 974 CVEs, 2 Zero-Days and 20 Wormable Bugs - Security Affairs
Petri IT Knowledgebase
Press · 09 Sep 2026, 07:00 · Microsoft Fixes More Than 100 Critical Vulnerabilities in September Patch Tuesday - Petri IT Knowledgebase
SOCRadar
Press · 09 Sep 2026, 07:00 · September 2026 Patch Tuesday: 974 Flaws, 2 Zero-Days - SOCRadar
Proofpoint
Press · 09 Sep 2026, 07:00 · Once in a BlueMoon: Multiple State-Aligned Threat Actors Rapidly Adopt Novel Exploit Chain Using Chrome and Windows Zero-Days - Proofpoint
The Register
Press · 09 Sep 2026, 07:00 · Microsoft breaks Patch Tuesday record with 974-CVE deluge - The Register
Australian Cyber Security Magazine
Press · 09 Sep 2026, 07:00 · Rapid7 highlights two exploited flaws in September Patch Tuesday - Australian Cyber Security Magazine
SecurityBrief Australia
Press · 09 Sep 2026, 07:00 · Microsoft Patch Tuesday hits 999 flaws with two exploited - SecurityBrief Australia
iTWire
Press · 09 Sep 2026, 07:00 · September Patch Tuesday - Rapid7 Expert Adam Barnett - iTWire
Help Net Security
Press · 09 Sep 2026, 07:00 · September 2026 Patch Tuesday: Record patch count, 2 zero-days, and a SigRed successor - Help Net Security
Forbes
Press · 09 Sep 2026, 07:00 · How To Patch After Microsoft Confirms 973 Security Vulnerabilities - Forbes
Krebs on Security
Press · 08 Sep 2026, 21:44 · Microsoft Plugs Nearly 1,000 Security Holes
SecurityWeek
Press · 08 Sep 2026, 07:00 · Microsoft Patches Record 974 Vulnerabilities, Including Two Exploited Zero-Days - SecurityWeek
LinkedIn
Press · 08 Sep 2026, 07:00 · Microsoft Releases Record September Patch Tuesday Fixing 900+ Flaws Including Two Exploited Zero-Days - LinkedIn
Krebs on Security
Press · 08 Sep 2026, 07:00 · Microsoft Plugs Nearly 1,000 Security Holes - Krebs on Security
BleepingComputer
Press · 08 Sep 2026, 07:00 · Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days - BleepingComputer
Cisco Talos Blog
Press · 08 Sep 2026, 07:00 · Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilities - Cisco Talos Blog
CyberSecurityNews
Press · 08 Sep 2026, 07:00 · Massive Microsoft Patch Tuesday September 2026 - 973 Vulnerabilities Fixed, Including 2 Zero-Days - CyberSecurityNews
The Record from Recorded Future News
Press · 08 Sep 2026, 07:00 · Microsoft posts nearly 1,000 bugs for Patch Tuesday as CISA warns two being exploited - The Record from Recorded Future News

Score evolution

● Hype   ● Reality

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

First record: hype 0.6 · reality 8.2 (2026-11-02 15:14). 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 7.8; EPSS 0.4%
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 14:00:28.370038+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
Added to the CISA KEV catalog
08 Sep 2026, 00:00
First press mention
08 Sep 2026, 07:00
Published
08 Sep 2026, 17:14
Latest press mention
09 Oct 2026, 07:00
Score calculated
05 Nov 2026, 14:00