CVE-2021-40085
MediumPublic PoC
Published: 31 August 2021
Published
31 August 2021
Modified
21 November 2024
KEV Added
—
Patch
31 August 2021
CVSS Score v3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.0135
80.5th percentile
Risk Priority
14
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-40085 is a medium-severity an unspecified weakness vulnerability in Openstack Neutron. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 19.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-0145
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
openstack
neutron
≤ 16.4.1 · 17.0.0 — 17.2.1 · 18.0.0 — 18.1.1
debian
debian linux
10.0, 11.0, 9.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.