CVE-2012-0942

Buffer overflow in rn5auth.dll in RealNetworks Helix Server and Helix Mobile Server 14.x before 14.3.x allows remote attackers to execute arbitrary code via crafted authentication credentials.

Published: 2012-04-17 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-0942 is rated Moderate Risk (62.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.28%). 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-2012-0942

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 3.17% 4.28% +1.11%
2 2026-03-09 3.73% 3.17% -0.56%
3 2025-03-30 — 3.73% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-0942

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/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:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-0942

Affected software / configurations for CVE-2012-0942

Vendor Product Version Raw CPE
realnetworks helix_server 14.0.0 cpe:2.3:a:realnetworks:helix_server:14.0.0:*:*:*:*:*:*:*
realnetworks helix_server 14.0.1 cpe:2.3:a:realnetworks:helix_server:14.0.1:*:*:*:*:*:*:*
realnetworks helix_server 14.2 cpe:2.3:a:realnetworks:helix_server:14.2:*:*:*:*:*:*:*
realnetworks helix_server 14.2.0.212 cpe:2.3:a:realnetworks:helix_server:14.2.0.212:*:*:*:*:*:*:*
realnetworks helix_mobile_server 14.0.0 cpe:2.3:a:realnetworks:helix_mobile_server:14.0.0:*:*:*:*:*:*:*
realnetworks helix_mobile_server 14.0.1 cpe:2.3:a:realnetworks:helix_mobile_server:14.0.1:*:*:*:*:*:*:*

References for CVE-2012-0942

cvelogic Threat Intelligence