CVE-2026-91840
A flaw was found in NetworkManager-vpnc
- Risk score
- 48/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 25 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 connec…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.8 high
References
Original 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.
Last activity 25 Sep 2026. Patch Forecast updates every hour.