CVE-2015-2823

Siemens SIMATIC HMI Basic Panels 2nd Generation before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Comfort Panels before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Advanced before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC WinCC Runtime Professional before WinCC (TIA Portal) 13 SP1 Upd2, SIMATIC HMI Basic Panels 1st Generation (WinCC TIA Portal), SIMATIC HMI Mobile Panel 277 (WinCC TIA Portal), SIMATIC HMI Multi Panels (WinCC TIA Portal), and SIMATIC WinCC 7.x before 7.3 Upd4 allow remote attackers to complete authentication by leveraging knowledge of a password hash without knowledge of the associated password.

Published: 2015-04-08 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-2823 is rated Moderate Risk (56.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.15%). EPSS rose +1.65% 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-2015-2823

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 0.50% 2.15% +1.65%
2 2025-04-27 0.67% 0.50% -0.18%
3 2025-03-17 — 0.67% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-2823

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/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: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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2015-2823

Affected software / configurations for CVE-2015-2823

Vendor Product Version Raw CPE
siemens wincc 7.0 cpe:2.3:a:siemens:wincc:7.0:*:*:*:*:*:*:*
siemens wincc 7.1 cpe:2.3:a:siemens:wincc:7.1:*:*:*:*:*:*:*
siemens wincc 7.2 cpe:2.3:a:siemens:wincc:7.2:*:*:*:*:*:*:*
siemens wincc 7.3 cpe:2.3:a:siemens:wincc:7.3:*:*:*:*:*:*:*
siemens wincc <= 13.0 cpe:2.3:a:siemens:wincc:*:sp1:*:*:*:*:*:*
siemens wincc <= 13.0 cpe:2.3:a:siemens:wincc:*:sp1:*:*:advanced:*:*:*

References for CVE-2015-2823

cvelogic Threat Intelligence