CVE-2012-2101

Openstack Compute (Nova) Folsom, 2012.1, and 2011.3 does not limit the number of security group rules, which allows remote authenticated users with certain permissions to cause a denial of service (CPU and hard drive consumption) via a network request that triggers a large number of iptables rules.

Published: 2012-06-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-2101 is rated Low Risk (39.3/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.48%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-2101

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.89% 1.48% +0.60%
2 2025-03-30 1.65% 0.89% -0.76%
3 2025-03-29 — 1.65% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2101

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2012-2101

GitHub Security Advisory for CVE-2012-2101

GHSA-hq3f-9gf7-73r8 · Severity: low · Ecosystem: pip — Openstack Compute (Nova) Denial of service via network request that triggers large number of iptables rules

OS Trackers for CVE-2012-2101

vendor priority summary link
debian not yet assigned CVE-2012-2101 not yet assigned priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-2101
ubuntu medium CVE-2012-2101 medium priority: Ubuntu including 1 source packages (nova), 7 status rows across 7 suites (hardy, lucid, natty, oneiric, precise, quantal, upstream): released 3, DNE 2, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2012-2101

Affected software / configurations for CVE-2012-2101

Vendor Product Version Raw CPE
openstack nova 2011.3 cpe:2.3:a:openstack:nova:2011.3:*:*:*:*:*:*:*
openstack nova 2012.1 cpe:2.3:a:openstack:nova:2012.1:*:*:*:*:*:*:*
openstack nova folsom cpe:2.3:a:openstack:nova:folsom:*:*:*:*:*:*:*

References for CVE-2012-2101

cvelogic Threat Intelligence