Page generated: 09 Nov 2026, 02:29 UTC
← Dashboard

CVE-2020-15999

Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS 9.6 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.8/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.6: +1.44
  • Fresh EPSS: 63.89%: +0.32

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

SentinelOne
Press · 13 Mar 2024, 07:00 · Privilege Escalation Using CVE-2020-17087 & CVE-2020-15999 - SentinelOne
BleepingComputer
Press · 20 Mar 2021, 07:00 · Hacking group used 11 zero-days to attack Windows, iOS, Android users - BleepingComputer
WeLiveSecurity
Press · 12 Nov 2020, 08:00 · Google patches two new zero-day flaws in Chrome - WeLiveSecurity
WeLiveSecurity
Press · 11 Nov 2020, 08:00 · Microsoft Patch Tuesday fixes 17 critical flaws, Windows zero-day - WeLiveSecurity
TechTarget
Press · 11 Nov 2020, 08:00 · Windows zero-day shut down on November Patch Tuesday - TechTarget
See all 11 source documents
BleepingComputer
Press · 05 Nov 2020, 08:00 · Apple patches three actively exploited iOS zero-days - BleepingComputer
Malwarebytes
Press · 03 Nov 2020, 08:00 · Update your Chrome again as Google patches second zero-day in two weeks - Malwarebytes
WeLiveSecurity
Press · 02 Nov 2020, 08:00 · Google discloses Windows zero-day bug exploited in the wild - WeLiveSecurity
The Hacker News
Press · 21 Oct 2020, 07:00 · New Chrome 0-day Under Active Attacks – Update Your Browser Now - The Hacker News
BleepingComputer
Press · 20 Oct 2020, 07:00 · New Google Chrome version fixes actively exploited zero-day bug - BleepingComputer
Qualys
Press · 16 Sep 2020, 07:00 · Vulnerability Detection Pipeline - Qualys

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 8.8 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

See 1 repos with metrics
RepositoryStarsForksLanguageUpdated
Marmeus/CVE-2020-1599911HTML04 Jan 2021, 15:01
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 9.6; EPSS 63.9%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:14.320098+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
16 Sep 2020, 07:00
Published
03 Nov 2020, 00:00
Added to the CISA KEV catalog
03 Nov 2021, 00:00
Latest press mention
13 Mar 2024, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
1 repositories