7.8
CVE-2026-91840
- EPSS 0.19%
- Veröffentlicht 25.09.2026 17:56:32
- Zuletzt bearbeitet 30.09.2026 19:57:08
- Erkennungen
Networkmanager-vpnc: networkmanager-vpnc: local privilege escalation to root via newline injection in vpn username
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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGNOME
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Produkt
NetworkManager-vpnc
Default Statusunaffected
Version
0
Version <
*
Status
affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.19% | 0.081 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| patrick@puiterwijk.org | 7.8 | 1.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
|
CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
https://access.redhat.com/security/cve/CVE-2026-91840
https://bugzilla.redhat.com/show_bug.cgi?id=2533642
https://gitlab.gnome.org/Archive/NetworkManager-vpnc/-/work_items/19