CVE-2021-20349 json
IBM Tivoli Workload Scheduler 9.4 and 9.5 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking.
published 2021-08-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7767
- cvss
- 5.9
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
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.
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.9 | CVSS:3.0/AC:L/AV:L/S:U/UI:N/A:L/I:L/C:L/PR:N/RC:C/E:U/RL:O |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- IBM Workload Scheduler
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
ibm.com
/support/pages/node/6479347
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/194599
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2021-20349
- NVD CVE-2021-20349
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