CVE-2013-0335

OpenStack Compute (Nova) Grizzly, Folsom (2012.2), and Essex (2012.1) allows remote authenticated users to gain access to a VM in opportunistic circumstances by using the VNC token for a deleted VM that was bound to the same VNC port.

Published: 2013-03-22 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-0335 is rated Moderate Risk (53/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.15%). EPSS rose +1.11% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-2013-0335

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 1.04% 2.15% +1.11%
2 2025-03-30 2.80% 1.04% -1.77%
3 2025-03-29 — 2.80% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-0335

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2013-0335

GitHub Security Advisory for CVE-2013-0335

GHSA-qfp8-hfqx-c79c · Severity: high · Ecosystem: pip — OpenStack Compute Nova Unauthorised access to arbitrary VM using VNC token from deleted VM

OS Trackers for CVE-2013-0335

vendor priority summary link
debian not yet assigned CVE-2013-0335 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-2013-0335
redhat high — https://access.redhat.com/security/cve/CVE-2013-0335
ubuntu low CVE-2013-0335 low priority: Ubuntu including 1 source packages (nova), 6 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): released 3, DNE 2, ignored 1. https://ubuntu.com/security/CVE-2013-0335

NVD evaluator notes for CVE-2013-0335

Impact: Per http://www.ubuntu.com/usn/USN-1771-1/ "A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.10 Ubuntu 12.04 LTS Ubuntu 11.10"

Affected software / configurations for CVE-2013-0335

Vendor Product Version Raw CPE
openstack essex 2012.1 cpe:2.3:a:openstack:essex:2012.1:*:*:*:*:*:*:*
openstack folsom 2012.2 cpe:2.3:a:openstack:folsom:2012.2:*:*:*:*:*:*:*
openstack grizzly 2012.2 cpe:2.3:a:openstack:grizzly:2012.2:*:*:*:*:*:*:*
canonical ubuntu_linux 11.10 cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
canonical ubuntu_linux 12.10 cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*

References for CVE-2013-0335

cvelogic Threat Intelligence