CVE-2025-20337

ENISA EUVD: EUVD-2025-21708 ↗
Exploited in the Wild ✓ Confirmed 0-Day
Triaged: March 5, 2026 6 articles
VulnLookup ↗ NVD ↗ EUVD ↗ MITRE ↗ CISA KEV ↗

EPSS Score

Source: FIRST.org · 2026-05-24
1.35%
probability
This CVE has a 1.35% probability of being exploited in the next 30 days.
0% Top 80.3th percentile of all CVEs 100%

CVSS v3.1

Source: NVD
10.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected Products

Signal Intelligence

Confidenceⓘ
95%
EPSS 1.35%
CVSS v3.1 10.0
Mentions 6
Last Seen Nov 12, 2025

CNA Information

Analyst Note

CVE-2025-20337 is explicitly named as a zero-day vulnerability in multiple authoritative sources (BleepingComputer, TheHackerNews, CERT-EU). Amazon's threat intelligence team documented active exploitation by an advanced threat actor before patches were available. The CVE was published in July 2025 with concurrent exploitation reports, meeting the zero-day criteria of in-the-wild exploitation prior to patch availability.

Threat Actors 8

APT 29
apt_group Information theft and espionage 🇷🇺 RU
APT 28
apt_group Information theft and espionage 🇷🇺 RU
Hacking Team
apt_group 🇮🇹 IT
SCATTERED SPIDER
apt_group Financial crime 🇺🇸 US
Group 27
apt_group Information theft and espionage 🇨🇳 CN
Comment Crew
apt_group Information theft and espionage 🇨🇳 CN
Unnamed Actor
apt_group 🇨🇳 CN
Mana Team
apt_group 🇨🇳 CN

Triage Info

Decided atMar 05, 2026