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Vulnerabilities

Vulnerability · CVE-2026-0977

IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

Published Mar 16, 2026 · catalog updated Jun 17, 2026 · cics transaction gateway

Check if you run it

No confirmed exploitation is on record for CVE-2026-0977. EPSS is 0.21%. Act only if a listed version of cics transaction gateway is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Advisory link
Affected products
cpe ibm/cics transaction gateway

IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe ibm/cics transaction gateway10.1
  • cpe ibm/cics transaction gateway9.3

How to fix CVE-2026-0977

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-0977. EPSS is 0.21%. Act only if a listed version of cics transaction gateway is installed.

Which versions are affected?

Compare what you have installed with ibm/cics transaction gateway 10.1; ibm/cics transaction gateway 9.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-284: Improper Access Control. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 16, 2026 · NIST NVD

    Detected

    IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

  2. Jun 17, 2026 · NIST NVD

    Updated

    IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

Sources

  • CVE.orgVulnerability recordCVE-2026-0977

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-0977

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-0977

    IBM CICS Transaction Gateway for Multiplatforms 9.3 and 10.1 could allow a user to transfer or view files due to improper access controls.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.