Intel

CVE-2026-56451

Eine Schwachstelle wurde in Opcenter X (alle Versionen < V2604) identifiziert.

criticalEPSS 0.5%

Description

A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly validate the algorithm specified in the JSON Web Token (JWT) header. This could allow an unauthenticated remote attacker to forge arbitrary JWT, bypass authentication mechanisms and impersonate any user including administrative accounts, potentially gaining full unauthorized access to the application.

Source: siemens_advisoryNVD (NIST)cvelistv5CVE.org (MITRE)

Metrics

XIEM Effective CVSS
10.0
Source: nvd-v3
EPSS percentile
40.8 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
—
Show all metrics
Severity
critical
Priority score
85.47
Exploit maturity
no public PoC known
CVSS v3
10.0
CVSS v4
10.0
EPSS score
0.5 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-07-14 10:16 UTC
CWE
CWE-347

Weakness classes (CWE)

  • CWE-347Base

    Improper Verification of Cryptographic Signature

    The product does not verify, or incorrectly verifies, the cryptographic signature for data.

    cwe.mitre.org →

References & sources

Linked advisories