Page generated: 09 Nov 2026, 12:59 UTC
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CVE-2018-4990

Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Double Free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.

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

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 8.8: +1.32
  • Fresh EPSS: 35.94%: +0.18

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

Sources: 8 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 · 27 Oct 2022, 07:00 · SentinelOne Detects New Malicious PDF File - SentinelOne
CrowdStrike
Press · 16 Oct 2018, 07:00 · Leveraging Falcon Sandbox to Detect and Analyze Malicious PDFs Containing Zero-Day Exploits - CrowdStrike
Microsoft
Press · 02 Jul 2018, 07:00 · Taking apart a double zero-day sample discovered in joint hunt with ESET - Microsoft
Morphisec
Press · 18 Jun 2018, 07:00 · CVE-2018-4990 Acrobat Reader DC Double-Free Vulnerability - Morphisec
BleepingComputer
Press · 15 May 2018, 07:00 · Shadowy Hackers Accidentally Reveal Two Zero-Days to Security Researchers - BleepingComputer
See all 8 source documents
WeLiveSecurity
Press · 15 May 2018, 07:00 · A tale of two zero-days - WeLiveSecurity
Malwarebytes
Press · 15 May 2018, 07:00 · Adobe Reader zero-day discovered alongside Windows vulnerability - Malwarebytes
The Register
Press · 14 May 2018, 07:00 · How many ways can a PDF mess up your PC? 47 in this Adobe update alone - The Register

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 15:12). 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 35.9%
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 13:58:00.649680+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
14 May 2018, 07:00
Published
09 Jul 2018, 19:00
Added to the CISA KEV catalog
08 Jun 2022, 00:00
Latest press mention
27 Oct 2022, 07:00
Score calculated
05 Nov 2026, 13:58