CVE-2020-4492
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local...
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments. IBM X-Force ID: 181992.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments. IBM X-Force ID: 181992.
- Record
CVE-2020-4492- CVSS 3.0
- 6.2 Medium
CVSS:3.0/I:N/C:N/UI:N/AC:L/A:H/PR:N/S:U/AV:L/RC:C/E:U/RL:O - Updated
- 2026-11-02
EUVDEUVD-2020-25739
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments. IBM X-Force ID: 181992.
- Record
EUVD-2020-25739- CVSS 3.0
- 6.2 Medium
CVSS:3.0/I:N/C:N/UI:N/AC:L/A:H/PR:N/S:U/AV:L/RC:C/E:U/RL:O - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pch5-pgjv-2p83 No score
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local...
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments. IBM X-Force ID: 181992.
- Record
GHSA-pch5-pgjv-2p83- Updated
- 2026-11-02
NVD
IBM Spectrum Scale V5.0.0.0 through V5.0.4.3 and V4.2.0.0 through V4.2.3.21 could allow a local attacker to cause a denial of service crashing the kernel by sending a subset of ioctls on the device with invalid arguments. IBM X-Force ID: 181992.
- Record
CVE-2020-4492- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 3.0
- 6.2 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-88
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-4492 is a medium vulnerability (CVSS 6.2) in Ibm Spectrum Scale, published August 31, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.