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01 Record

CVE-2026-3303

IBM Concert Software Permissive Cross-domain Security Policy

LowPUBLISHEDCNA: ibm
CNA base score3.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

02 Description

IBM Concert Software Permissive Cross-domain Security Policy

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 12.5% of scored records. A rank, not a probability.
NVD base score
3.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-20.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-19 17:17Z9 DAYS AGO
Last updated
2026-10-20 16:10Z8 DAYS AGO
Reserved
2026-02-26
Assigning CNA
ibm
Record state
PUBLISHED
Severity
Low (CVSS 3.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
  • CWE-942Permissive Cross-domain Security Policy with Untrusted DomainsVariant
Data version
5.2
Document digest
f4221fc141d8dd8b9f1eaa192a8febf97dda9e7af3d1d3e0c4133b1a172e8765

05 Affected products

VendorProductVersionsPlatforms
IBMConcert1.0.0 to 3.0.0—

06 References

07 Remediation

IBM strongly recommends addressing these vulnerabilities now by upgrading to IBM Concert Software 3.0.1.1 Download IBM Concert Software 3.0.1.1 from Container software library section of IBM Entitled Registry (ICR) and follow installation instructions depending on the type of deployment.