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TI-2021-03634 Aliases CVE-2021-20349GHSA-73rp-2374-fcqg

Out-of-bounds write in IBM Workload Scheduler

Priority LOW 24CWE-787Published · Updated

Key facts

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

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

Summary

IBM Tivoli Workload Scheduler 9.4 and 9.5 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and gain lower level privileges. IBM X-Force ID: 194599.

Why it matters now

EPSS 0.00254 17th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMWorkload Scheduler9.4; 9.5—No fix listedCNA
  • Workload Scheduler VendorIBM Affected 9.4; 9.5 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:ibm:tivoli_workload_scheduler:9.4:*:*:*:*:*:*:*9.4VulnerableIBM
cpe:2.3:a:ibm:tivoli_workload_scheduler:9.5:*:*:*:*:*:*:*9.5VulnerableIBM
  • cpe:2.3:a:ibm:tivoli_workload_scheduler:9.4:*:*:*:*:*:*:* Versions 9.4 Vulnerable ·IBM
  • cpe:2.3:a:ibm:tivoli_workload_scheduler:9.5:*:*:*:*:*:*:* Versions 9.5 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-20349
  2. 2026-10-03 Alias added: GHSA-73rp-2374-fcqg

References

Advisory 1

  • TI-2022-06769 IBM Tivoli Workload Scheduler XML external entity injection CVSS 3.1CRITICAL 10.0
  • TI-2022-18015 IBM Tivoli Workload Scheduler XML external entity injection CVSS 3.1CRITICAL 9.1
  • TI-2019-03017 IBM Workload Scheduler Distributed 9.2, 9.3, 9.4, and 9.5 contains a vulnerability that… CVSS 3.1HIGH 7.8
  • TI-2018-01277 Incorrect permission assignment in IBM Workload Scheduler CVSS 3.1HIGH 7.8
  • TI-2019-03375 Cross-site scripting in IBM Workload Scheduler CVSS 3.1MEDIUM 5.4
  • TI-2017-01338 Incorrect permission assignment in IBM Tivoli Workload Scheduler CVSS 3.0LOW 3.3

Sources

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