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TI-2025-20633 Aliases CVE-2025-27909GHSA-22cj-gf6g-gpgc

IBM Concert Software cross-origin resource sharing

Priority MEDIUM 41CWE-942Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00214 11th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMConcert Software1.0.0 – 1.1.0—No fix listedCNA
  • Concert Software VendorIBM Affected 1.0.0 – 1.1.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:*1.0.0 to before 2.0.0VulnerableIBM
  • cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:* Versions 1.0.0 to before 2.0.0 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    IBM Concert Software — ibm.com/support/pages/node/7242354

    5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2025-24074 IBM Concert Software denial of servicePriority LOW 39
    • TI-2025-01516 IBM Concert Software information disclosurePriority LOW 33
    • TI-2025-24080 IBM Concert Software information disclosurePriority LOW 32
    Show all 5 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27909
  2. 2026-10-03 Alias added: GHSA-22cj-gf6g-gpgc

References

Patch 1

  • TI-2026-05889 Multiple Vulnerabilities in IBM Concert Software CVSS 3.1CRITICAL 9.8
  • TI-2026-06070 Multiple Vulnerabilities in IBM Concert Software CVSS 3.1CRITICAL 9.8
  • TI-2026-05896 Multiple Vulnerabilities in IBM Concert Software CVSS 3.1CRITICAL 9.8
  • TI-2026-03128 Multiple Vulnerabilities in IBM Concert Software CVSS 3.1CRITICAL 9.1
  • TI-2025-24073 Multiple Vulnerabilities in IBM Concert Software. CVSS 3.1CRITICAL 9.8
  • TI-2026-14345 Multiple Vulnerabilities in IBM Concert Software CVSS 3.1CRITICAL 9.6
See all 91 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences