CVE-2018-10900
CVE-2018-10900 is a high-severity vulnerability in Gnome Network Manager Vpnc with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 4% (90th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Gnome Network Manager Vpnc
- Published:
- Last modified:
Description
Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. A new line character can be used to inject a Password helper parameter into the configuration data passed to VPNC, allowing an attacker to execute arbitrary commands as root.
Frequently asked questions
- What is CVE-2018-10900?
- Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. A new line character can be used to inject a Password helper parameter into the configuration data passed to VPNC, allowing an attacker to execute arbitrary commands as root.
- How severe is CVE-2018-10900?
- CVE-2018-10900 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-10900 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-10900?
- CVE-2018-10900 primarily affects Gnome Network Manager Vpnc. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-10900?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-10900 published?
- CVE-2018-10900 was published on 2018-07-26 and last updated on 2026-06-17.
References
- https://bugzilla.novell.com/show_bug.cgi?id=1101147
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10900
- https://download.gnome.org/sources/NetworkManager-vpnc/1.2/NetworkManager-vpnc-1.2.6.news
- https://gitlab.gnome.org/GNOME/NetworkManager-vpnc/commit/07ac18a32b4
- https://lists.debian.org/debian-lts-announce/2018/07/msg00048.html
- https://pulsesecurity.co.nz/advisories/NM-VPNC-Privesc
- https://security.gentoo.org/glsa/201808-03
- https://www.debian.org/security/2018/dsa-4253
- https://www.exploit-db.com/exploits/45313/
Affected products (3)
- cpe:2.3:a:gnome:network_manager_vpnc:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
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