AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2019-3859

CRITICAL · CVSS 9.1 EPSS 6.28% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-03-21 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References
packetstormsecurity.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2019-3859
Severity
CRITICAL
CVSS
9.1
EPSS
6.28%

Original NVD Description

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.