CVE-2020-4756 json
IBM Spectrum Scale V4.2.0.0 through V4.2.3.23 and V5.0.0.0 through V5.0.5.2 as well as IBM Elastic Storage System 6.0.0 through 6.0.1.0 cou…
published 2020-10-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-26003
- cvss
- 6.2
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
IBM Spectrum Scale V4.2.0.0 through V4.2.3.23 and V5.0.0.0 through V5.0.5.2 as well as IBM Elastic Storage System 6.0.0 through 6.0.1.0 could allow a local attacker to invoke a subset of ioctls on the device with invalid arguments that could crash the keneral and cause a denial of service. IBM X-Force ID: 188599.
Patch / fix
- ibm.com/support/pages/node/6349469 advisory
- ibm.com/support/pages/node/6349475 advisory
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.2 | CVSS:3.0/A:H/C:N/PR:N/UI:N/S:U/I:N/AC:L/AV:L/RL:O/RC:C/E:U |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.0 | 6.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- IBM Elastic Storage Server
- IBM Spectrum Scale
Classification
- Weakness
-
- CWE-404 Improper Resource Shutdown or Release
References
-
ibm.com
/support/pages/node/6349469
patch, vendor-advisory
-
ibm.com
/support/pages/node/6349475
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/188599
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2020-4756
- NVD CVE-2020-4756
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