CVE-2025-6554

ENISA EUVD: EUVD-2025-19675 ↗
Exploited in the Wild ✓ Confirmed 0-Day ★ Google Project Zero
Triaged: March 3, 2026 7 articles

EPSS Score

Source: FIRST.org · 2026-05-24
1.58%
probability
This CVE has a 1.58% probability of being exploited in the next 30 days.
0% Top 81.8th percentile of all CVEs 100%

CVSS v3.1

Source: NVD
8.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

Project Zero
Type confusion in V8

Affected Products

Attack Intelligence

Google Project Zero

Patched
June 30, 2025
Reported by
Clément Lecigne of Google's Threat Analysis Group
Root Cause Analysis
???

Exploits & PoC

aklnjakln/CVE-2025-6554

PoC CVE-2025-6554 — aklnjakln/CVE-2025-6554

30
PwnToday/CVE-2025-6554

PoC CVE-2025-6554 — PwnToday/CVE-2025-6554

2
ghostn4444/POC-CVE-2025-6554

PoC CVE-2025-6554 — ghostn4444/POC-CVE-2025-6554

1
juccoblak/CVE-2025-6554

🔍 Demonstrate and validate the `addressof` and `fakeobj` primitives in the V8 sandbox for advanced security research on CVE-2025-6554.

1
gmh5225/CVE-2025-6554

PoC CVE-2025-6554 — gmh5225/CVE-2025-6554

0
LordBheem/CVE-2025-6554

CVE-2025-6554 PoC

0
6 repos — triés par ⭐ Rechercher sur GitHub ↗

Signal Intelligence

Confidence
92%
EPSS 1.58%
CVSS v3.1 8.1
Mentions 7
Last Seen Dec 11, 2025

CNA Information

Analyst Note

CVE-2025-6554 is confirmed as a zero-day with active in-the-wild exploitation, high CVSS score (8.1), and coverage by Google Project Zero and multiple reputable security sources. The type confusion vulnerability in V8 enabling arbitrary read/write through crafted HTML represents a credible critical threat with confirmed exploitation activity.

Threat Actors 13

APT 28
apt_group Information theft and espionage 🇷🇺 RU
Hacking Team
apt_group 🇮🇹 IT
SCATTERED SPIDER
apt_group Financial crime 🇺🇸 US
HAZY TIGER
apt_group Information theft and espionage 🇮🇳 IN
Infy
apt_group Information theft and espionage 🇮🇷 IR
APT42
apt_group Information theft and espionage 🇮🇷 IR
APT24
apt_group Information theft and espionage 🇨🇳 CN
UNC1549
apt_group Information theft and espionage 🇮🇷 IR
Pat Bear
apt_group 🇸🇾 SY
PassCV
apt_group Information theft and espionage 🇨🇳 CN
Mana Team
apt_group 🇨🇳 CN
Sima
apt_group Information theft and espionage 🇮🇷 IR
APT 5
apt_group Information theft and espionage 🇨🇳 CN

Triage Info

Decided atMar 03, 2026