HIGH
Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack
Published Jul 26, 2018
7.8
HIGHCVSS 3.1
EPSS 3.92%
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.
Affected products
- Vendor n/a Product Networkmanager-Vpnc Defaultn/a
- Version NetworkManager-vpnc 1.2.6StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Networkmanager-Vpnc | n/a |
|
Configuration 1
- < 1.2.6
Configuration 2
OR
- 8.0
- 9.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.8 HIGH NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
8.8 HIGH Red Hat
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.2 HIGH NVD
AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.92% 0.03925
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03925
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.92% (0.03925) | 90.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.06% (0.05059) | 91.19th | v5 (v2026.06.15) |
| Nov 21, 2025 | 14.68% (0.14681) | 94.21th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.91% (0.02911) | 85.12th | v4 (v2025.03.14) |
| Oct 12, 2025 | 14.68% (0.14681) | 94.16th | v4 (v2025.03.14) |
| Sep 30, 2025 | 13.05% (0.13051) | 93.88th | v4 (v2025.03.14) |
| Sep 10, 2025 | 8.22% (0.08222) | 91.89th | v4 (v2025.03.14) |
| Jun 4, 2025 | 6.05% (0.06053) | 90.25th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.44% (0.04440) | 88.00th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.09% (0.02091) | 73.37th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.44% (0.04440) | 88.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.36% (0.00364) | 73.22th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.36% (0.00364) | 71.57th | v3 (v2023.03.01) |
| Jul 20, 2023 | 0.36% (0.00364) | 68.67th | v3 (v2023.03.01) |
| Jun 17, 2023 | 0.31% (0.00314) | 65.98th | v3 (v2023.03.01) |
| May 8, 2023 | 0.32% (0.00321) | 66.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00316) | 65.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 11.96% (0.11961) | 95.17th | v2 (v2022.01.01) |
| Apr 1, 2022 | 11.96% (0.11961) | 94.79th | v2 (v2022.01.01) |
| Feb 4, 2022 | 11.96% (0.11961) | 89.19th | v2 (v2022.01.01) |
| Feb 3, 2022 | 55.24% (0.55245) | 99.12th | v1 |
| Sep 16, 2021 | 55.24% (0.55245) | 99.72th | v1 |
| Sep 14, 2021 | 14.31% (0.14314) | 96.86th | v1 |
| Sep 1, 2021 | 55.24% (0.55245) | 99.72th | v1 |
| Apr 14, 2021 | 55.24% (0.55245) | 0.00th | v1 |
Weaknesses (1)
References (9)
- https://bugzilla.novell.com/show_bug.cgi?id=1101147 x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10900 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://download.gnome.org/sources/NetworkManager-vpnc/1.2/NetworkManager-vpnc-1.2.6.news x_refsource_CONFIRMThird Party AdvisoryVendor Advisory
- https://gitlab.gnome.org/GNOME/NetworkManager-vpnc/commit/07ac18a32b4 x_refsource_CONFIRMPatchThird Party AdvisoryVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00048.html mailing-listx_refsource_MLISTThird Party Advisory
- https://pulsesecurity.co.nz/advisories/NM-VPNC-Privesc x_refsource_MISCExploitThird Party Advisory
- https://security.gentoo.org/glsa/201808-03 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.debian.org/security/2018/dsa-4253 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.exploit-db.com/exploits/45313/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://bugzilla.novell.com/show_bug.cgi?id=1101147 | x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10900 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://download.gnome.org/sources/NetworkManager-vpnc/1.2/NetworkManager-vpnc-1.2.6.news | x_refsource_CONFIRMThird Party AdvisoryVendor Advisory | |
| https://gitlab.gnome.org/GNOME/NetworkManager-vpnc/commit/07ac18a32b4 | x_refsource_CONFIRMPatchThird Party AdvisoryVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00048.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| https://pulsesecurity.co.nz/advisories/NM-VPNC-Privesc | x_refsource_MISCExploitThird Party Advisory | |
| https://security.gentoo.org/glsa/201808-03 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4253 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.exploit-db.com/exploits/45313/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 26, 2018
Updated Aug 5, 2024
Reserved May 9, 2018
Link CVE-2018-10900
CISA Vulnrichment
Updated n/a