CVE-2016-4656

ENISA EUVD: EUVD-2016-5642 ↗
Exploited in the Wild ✓ Confirmed 0-Day ★ Google Project Zero
Triaged: March 5, 2026 1 article
VulnLookup ↗ NVD ↗ EUVD ↗ MITRE ↗ Advisory ↗ P0 Sheet ↗ CISA KEV ↗

EPSS Score

Source: FIRST.org · 2026-05-24
65.33%
probability
This CVE has a 65.33% probability of being exploited in the next 30 days.
0% Top 98.5th percentile of all CVEs 100%

CVSS v3.1

Source: NVD
7.8
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

Project Zero
Use-after-free in kernel OSUnserializeBinary (Pegasus)

Affected Products

Attack Intelligence

Google Project Zero

Discovered
Aug. 15, 2016
Patched
Aug. 25, 2016
Reported by
Citizen Lab and Lookout
Root Cause Analysis
???

Exploits & PoC

Signal Intelligence

Confidenceⓘ
95%
EPSS 65.33%
CVSS v3.1 7.8
Mentions 1

CNA Information

Analyst Note

Auto-imported from Google Project Zero — confirmed zero-day by definition.

Triage Info

Decided atMar 05, 2026