CVE-2018-4990
ENISA EUVD: EUVD-2018-16775 ↗
Exploited in the Wild
✓ Confirmed 0-Day
★ Google Project Zero
Triaged: March 3, 2026
3 articles
EPSS Score
Source: FIRST.org · 2026-05-24
51.5%
probability
This CVE has a 51.5% probability
of being exploited in the next 30 days.
0%
Top 97.9th percentile of all CVEs
100%
CVSS v3.1
Source: NVD8.8
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Description
Project ZeroOut-of-bounds free in JPEG2000 CMAP
Affected Products
Attack Intelligence
CWE-118
· Incorrect Access of Indexable Resource ('Range Error')
CWE-119
· Buffer Overflow
CWE-1341
CWE-415
· Double Free
CWE-573
CWE-664
· Improper Control of a Resource Through its Lifetime
CWE-666
· Operation on Resource in Wrong Phase of Lifetime
CWE-672
· Operation on a Resource after Expiration or Release
CWE-675
CWE-710
· Improper Adherence to Coding Standards
CWE-825
· Expired Pointer Dereference
Google Project Zero
Patched
May 14, 2018
Reported by
Anton Cherepanov of ESET & Matt Oh of Microsoft, Ke Liu of Tencent's Xuanwu LAB working via Trend Micro's Zero Day Initiative
Root Cause Analysis
???
Shadowy Hackers Accidentally Reveal Two Zero-Days to Security Researchers
BleepingComputer
May 15, 2018
Security Advisory 2018-015
CERT-EU
May 15, 2018
Signal Intelligence
Confidence
88%
EPSS
51.5%
CVSS v3.1
8.8
Mentions
3
Last Seen
May 15, 2018
CNA Information
Analyst Note
CVE-2018-4990 is confirmed as a double free vulnerability in Adobe Acrobat and Reader with high CVSS score (8.8) and verified reporting from Google Project Zero and CERT-EU, enabling arbitrary code execution. The vulnerability affected multiple product versions across 2015-2018 releases and prompted official security advisories. Strong evidence from reputable security sources supports the confirmed classification despite limited public articles.
Triage Info
Decided atMar 03, 2026