OCTOBER 9, 2026
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Case File

CVE-2026-91840

HIGH · CVSS 7.8 EPSS 0.19%

Source: NVD + CISA KEV + EPSS · Published 2026-09-25 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

A vulnerability in NetworkManager-vpnc allows local unprivileged users to escalate privileges to root by injecting a newline character into the VPN username field, enabling them to manipulate the vpnc configuration. This could lead to the execution of arbitrary programs with root privileges upon activation of a malicious VPN connection. Organizations using NetworkManager-vpnc should prioritize patching this flaw to mitigate the risk of privilege escalation attacks.

CVE
CVE-2026-91840
Severity
HIGH
CVSS
7.8
EPSS
0.19%

Original NVD Description

A flaw was found in NetworkManager-vpnc. This vulnerability allows a local unprivileged user to escalate privileges to root. By injecting a newline character into the VPN username field, an attacker can manipulate the vpnc configuration to execute an arbitrary program with root privileges when the malicious VPN connection is activated.