Improper input validation in NetworkManager
Priority LOW 24CWE-20Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
A flaw was found in NetworkManager in versions before 1.30.0. Setting match.path and activating a profile crashes NetworkManager. The highest threat from this vulnerability is to system availability.
Why it matters now
EPSS 0.0025 16th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 3 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | NetworkManager | NetworkManager 1.30.0 | — | No fix listed | CNA |
- NetworkManager Vendor— Affected NetworkManager 1.30.0 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnome:networkmanager:*:*:*:*:*:*:*:* | before 1.30.0 | Vulnerable | GNOME |
| cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
- cpe:2.3:a:gnome:networkmanager:*:*:*:*:*:*:*:* Versions before 1.30.0 Vulnerable ·GNOME
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
Remediation
Red Hat 1 advisory
- RHSA-2021:1574 Released 2021-05-18 · Red Hat rating ModerateNetworkManager and libnma security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) NetworkManager-libnm-devel-1:1.30.0-7.el8, libnma-devel-1.8.30-2.el8
- Red Hat Enterprise Linux AppStream (v. 8) NetworkManager-cloud-setup-1:1.30.0-7.el8, libnma-1.8.30-2.el8
- Red Hat Enterprise Linux BaseOS (v. 8) NetworkManager-1:1.30.0-7.el8, NetworkManager-adsl-1:1.30.0-7.el8, NetworkManager-bluetooth-1:1.30.0-7.el8 +10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:1574 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:1574 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:1574 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20297
- 2026-10-03 Alias added: GHSA-c9hx-hg53-g52p
References
Sources
- CVE-2021-20297 · CVE Program
- CVE-2021-20297 · NVD
- FIRST EPSS
- GHSA-c9hx-hg53-g52p · GitHub Advisory Database · CC BY 4.0
- CVE-2021-20297 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences