CVE-2011-0992

Use-after-free vulnerability in Mono, when Moonlight 2.x before 2.4.1 or 3.x before 3.99.3 is used, allows remote attackers to cause a denial of service (plugin crash) or obtain sensitive information via vectors related to member data in a resurrected MonoThread instance.

Published: 2011-04-13 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0992 is rated Moderate Risk (50.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.35%). 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-2011-0992

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 2025-05-18 1.57% 1.35% -0.22%
2 2025-03-30 2.79% 1.57% -1.22%
3 2025-03-29 — 2.79% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0992

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/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:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2011-0992

OS Trackers for CVE-2011-0992

vendor priority summary link
debian unimportant CVE-2011-0992 unimportant priority: Debian including 1 source packages (mono), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-0992
gentoo high CVE-2011-0992: 1 GLSA(s) (201206-13), 2 atom(s) (dev-lang/mono, dev-util/mono-debugger); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-0992
ubuntu negligible CVE-2011-0992 negligible priority: Ubuntu including 1 source packages (mono), 14 status rows across 14 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic): ignored 10, not-affected 2, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2011-0992

Affected software / configurations for CVE-2011-0992

Vendor Product Version Raw CPE
mono mono — cpe:2.3:a:mono:mono:*:*:*:*:*:*:*:*
novell moonlight 2.0 cpe:2.3:a:novell:moonlight:2.0:*:*:*:*:*:*:*
novell moonlight 2.3.0 cpe:2.3:a:novell:moonlight:2.3.0:*:*:*:*:*:*:*
novell moonlight 2.4 cpe:2.3:a:novell:moonlight:2.4:*:*:*:*:*:*:*
novell moonlight 2.31 cpe:2.3:a:novell:moonlight:2.31:*:*:*:*:*:*:*
novell moonlight 3.0 cpe:2.3:a:novell:moonlight:3.0:*:*:*:*:*:*:*
novell moonlight 3.99 cpe:2.3:a:novell:moonlight:3.99:*:*:*:*:*:*:*

References for CVE-2011-0992

cvelogic Threat Intelligence