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CVE-2020-4890

14
FAUCET Score

CVE-2020-4890 describes a denial-of-service vulnerability in IBM Spectrum Scale versions 5.0.0 through 5.0.5.5 and 5.1.0 through 5.1.0.2. A local user with valid REST API access can exploit weak or absent rate limiting to disrupt service. Rated Medium with a CVSS score of 4.4, this vulnerability requires high privileges and local access, leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.0.0.0, <= 5.0.5.5CPE matchmatch criteria
cpe:2.3:a:ibm:spectrum_scale:*:*:*:*:*:*:*:*
>= 5.1.0.0, <= 5.1.0.2CPE matchmatch criteria
cpe:2.3:a:ibm:spectrum_scale:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.4MEDIUM

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 61st percentile among its peer group of 3,720 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/190973
VDB EntryVendor Advisory
ibm.com / support/pages/node/6430147
PatchVendor Advisory