CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NCVE-2021-40085
Medium (6.5). EPSS 1.8% chance of exploitation in the next 30 days. Fixed in neutron 16.4.1, 17.2.1, 18.1.1.
An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.
Severity
- EPSS
- 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- openstack:neutron
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fh73-gjvg-349c | PyPI | neutron | <16.4.1 | 16.4.1 |
| GHSA-fh73-gjvg-349c | PyPI | neutron | >=17.0.0 <17.2.1 | 17.2.1 |
| GHSA-fh73-gjvg-349c | PyPI | neutron | >=18.0.0 <18.1.1 | 18.1.1 |
| PYSEC-2021-361 | PyPI | neutron | <16.4.1 >=17.0.0 <17.2.1 >=18.0.0 <18.1.1 | 16.4.1, 17.2.1, 18.1.1 |