CVE-2013-4185

Exp

Algorithmic complexity vulnerability in OpenStack Compute (Nova) before 2013.1.3 and Havana before havana-3 does not properly handle network source security group policy updates, which allows remote authenticated users to cause a denial of service (nova-network consumption) via a large number of server-creation operations, which triggers a large number of update requests.

Published: 2013-10-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4185 is rated High Exploit Risk (60.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.09%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.50% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2013-4185

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-4185

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 0.58% 2.09% +1.50%
2 2025-12-14 0.37% 0.58% +0.21%
3 2025-03-30 — 0.37% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4185

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/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:L)
Exploitation conditions are straightforward and predictable.
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.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2013-4185

GitHub Security Advisory for CVE-2013-4185

GHSA-ph2h-hh49-vh27 · Severity: medium · Ecosystem: pip — OpenStack Nova Denial of Service in network source security groups

OS Trackers for CVE-2013-4185

vendor priority summary link
debian low CVE-2013-4185 low 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-2013-4185
redhat medium — https://access.redhat.com/security/cve/CVE-2013-4185
ubuntu medium CVE-2013-4185 medium priority: Ubuntu including 1 source packages (nova), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 4, DNE 1, not-affected 1. https://ubuntu.com/security/CVE-2013-4185

Affected software / configurations for CVE-2013-4185

Vendor Product Version Raw CPE
openstack compute >= 2013.1, < 2013.1.3 cpe:2.3:a:openstack:compute:*:*:*:*:*:*:*:*
openstack compute >= 2013.2, < 2013.2.3 cpe:2.3:a:openstack:compute:*:*:*:*:*:*:*:*
redhat openstack 3.0 cpe:2.3:a:redhat:openstack:3.0:*:*:*:*:*:*:*

References for CVE-2013-4185

cvelogic Threat Intelligence