CVE-2017-3881

ENISA EUVD: EUVD-2017-12998 ↗
Exploited in the Wild ✓ Confirmed 0-Day ★ Google Project Zero
Triaged: March 3, 2026 4 articles
VulnLookup ↗ NVD ↗ EUVD ↗ MITRE ↗ Advisory ↗ P0 Sheet ↗ CISA KEV ↗

EPSS Score

Source: FIRST.org · 2026-05-24
94.28%
probability
This CVE has a 94.28% probability of being exploited in the next 30 days.
0% Top 99.9th percentile of all CVEs 100%

CVSS v3.1

Source: NVD
9.8
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Project Zero
Buffer overflow in IOS Cluster Management Protocol

Affected Products

Attack Intelligence

Google Project Zero

Patched
March 17, 2017
Reported by
Vault 7 Disclosure
Root Cause Analysis
???

Exploits & PoC

artkond/cisco-rce

CVE-2017-3881 Cisco Catalyst Remote Code Execution PoC

213
homjxi0e/CVE-2017-3881-exploit-cisco-

PoC CVE-2017-3881 — homjxi0e/CVE-2017-3881-exploit-cisco-

2
1337g/CVE-2017-3881

credit to artkond

2
mzakyz666/PoC-CVE-2017-3881

Cisco Catalyst Remote Code Execution PoC

1
homjxi0e/CVE-2017-3881-Cisco

PoC CVE-2017-3881 — homjxi0e/CVE-2017-3881-Cisco

0
5 repos — triés par ⭐ Rechercher sur GitHub ↗

Signal Intelligence

Confidenceⓘ
92%
EPSS 94.28%
CVSS v3.1 9.8
Mentions 4
Last Seen Mar 21, 2017

CNA Information

Analyst Note

CVE-2017-3881 is a critical remote code execution vulnerability in Cisco IOS/IOS XE with CVSS 9.8, confirmed by Project Zero inclusion and CERT-EU security advisory. The unauthenticated remote attack vector and elevated privilege execution capability strongly support the confirmed status despite limited public documentation.

Threat Actors 6

Kinsing
apt_group 🇷🇺 RU
Infy
apt_group Information theft and espionage 🇮🇷 IR
TeamTNT
apt_group 🇩🇪 DE
Red October
apt_group 🇷🇺 RU
Operation Red Signature
apt_group Information theft and espionage 🇨🇳 CN
Mana Team
apt_group 🇨🇳 CN

Triage Info

Decided atMar 03, 2026