CVE-2011-0496

Unspecified vulnerability in Sybase EAServer 5.x and 6.x before 6.3 ESD#2, as used in Appeon, Replication Server Messaging Edition (RSME), and WorkSpace, allows remote attackers to install arbitrary web services and execute arbitrary code, related to a "design vulnerability."

Published: 2011-01-20 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0496 is rated High Risk (68.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 4.55%, 90th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize 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-2011-0496

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 7.36% 4.55% -2.81%
2 2026-06-13 9.24% 7.36% -1.88%
3 2026-04-15 — 9.24% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0496

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2011-0496

NVD evaluator notes for CVE-2011-0496

Impact: Per: http://www.sybase.com/detail?id=1091057 ' Remote exploitation of a design vulnerability in Sybase EAServer could allow an attacker to install arbitrary web services, this condition can result in arbitrary code execution allowing attacker to gain control over the affected machine. This also affects those products that include EAServer: Appeon, Replication Server Messaging Edition, and WorkSpace.'

Affected software / configurations for CVE-2011-0496

Vendor Product Version Raw CPE
sybase appeon_for_powerbuilder 2.5 cpe:2.3:a:sybase:appeon_for_powerbuilder:2.5:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 2.6 cpe:2.3:a:sybase:appeon_for_powerbuilder:2.6:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 2.7 cpe:2.3:a:sybase:appeon_for_powerbuilder:2.7:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 2.8 cpe:2.3:a:sybase:appeon_for_powerbuilder:2.8:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 6.0 cpe:2.3:a:sybase:appeon_for_powerbuilder:6.0:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 6.1 cpe:2.3:a:sybase:appeon_for_powerbuilder:6.1:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 6.2 cpe:2.3:a:sybase:appeon_for_powerbuilder:6.2:*:*:*:*:*:*:*
sybase appeon_for_powerbuilder 6.5 cpe:2.3:a:sybase:appeon_for_powerbuilder:6.5:*:*:*:*:*:*:*
sybase easerver 5.0 cpe:2.3:a:sybase:easerver:5.0:*:*:*:*:*:*:*
sybase easerver 5.0.1 cpe:2.3:a:sybase:easerver:5.0.1:*:*:*:*:*:*:*
sybase easerver 5.1 cpe:2.3:a:sybase:easerver:5.1:*:*:*:*:*:*:*
sybase easerver 5.2 cpe:2.3:a:sybase:easerver:5.2:*:*:*:*:*:*:*
sybase easerver 5.2.1 cpe:2.3:a:sybase:easerver:5.2.1:*:*:*:*:*:*:*
sybase easerver 5.3 cpe:2.3:a:sybase:easerver:5.3:*:*:*:*:*:*:*
sybase easerver 5.5 cpe:2.3:a:sybase:easerver:5.5:*:*:*:*:*:*:*
sybase easerver 6.0 cpe:2.3:a:sybase:easerver:6.0:*:*:*:*:*:*:*
sybase easerver 6.0.2 cpe:2.3:a:sybase:easerver:6.0.2:*:*:*:*:*:*:*
sybase easerver 6.1 cpe:2.3:a:sybase:easerver:6.1:*:*:*:*:*:*:*
sybase easerver 6.2 cpe:2.3:a:sybase:easerver:6.2:*:*:*:*:*:*:*
sybase easerver 6.3 cpe:2.3:a:sybase:easerver:6.3:*:*:*:*:*:*:*
sybase easerver 6.3.1 cpe:2.3:a:sybase:easerver:6.3.1:*:*:*:*:*:*:*
sybase replication_server — cpe:2.3:a:sybase:replication_server:*:*:messaging:*:*:*:*:*
sybase replication_server 15.2 cpe:2.3:a:sybase:replication_server:15.2:*:messaging:*:*:*:*:*
sybase sybase_workspace — cpe:2.3:a:sybase:sybase_workspace:*:*:*:*:*:*:*:*
sybase sybase_workspace 1.0 cpe:2.3:a:sybase:sybase_workspace:1.0:*:*:*:*:*:*:*
sybase sybase_workspace 1.5 cpe:2.3:a:sybase:sybase_workspace:1.5:*:*:*:*:*:*:*
sybase sybase_workspace 1.6 cpe:2.3:a:sybase:sybase_workspace:1.6:*:*:*:*:*:*:*
sybase sybase_workspace 1.7 cpe:2.3:a:sybase:sybase_workspace:1.7:*:*:*:*:*:*:*
sybase sybase_workspace 2.0 cpe:2.3:a:sybase:sybase_workspace:2.0:*:*:*:*:*:*:*
sybase sybase_workspace 2.0.1 cpe:2.3:a:sybase:sybase_workspace:2.0.1:*:*:*:*:*:*:*
sybase sybase_workspace 2.0.2 cpe:2.3:a:sybase:sybase_workspace:2.0.2:*:*:*:*:*:*:*
sybase sybase_workspace 2.1 cpe:2.3:a:sybase:sybase_workspace:2.1:*:*:*:*:*:*:*
sybase sybase_workspace 2.1.2 cpe:2.3:a:sybase:sybase_workspace:2.1.2:*:*:*:*:*:*:*
sybase sybase_workspace 2.5 cpe:2.3:a:sybase:sybase_workspace:2.5:*:*:*:*:*:*:*

References for CVE-2011-0496

cvelogic Threat Intelligence