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CVE-2020-4926

28
FAUCET Score

CVE-2020-4926 is a critical vulnerability affecting IBM Spectrum Scale 5.1 and IBM Elastic Storage System 6.1, allowing unauthorized access to user data or injection of arbitrary data into the communication protocol. With a CVSS score of 9.1, it presents a high risk due to its network-based attack vector, low complexity, and significant impact on confidentiality and integrity. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.1.3.0CPE matchmatch criteria
cpe:2.3:a:ibm:elastic_storage_system:*:*:*:*:*:*:*:*
< 5.1.3.0CPE matchmatch criteria
cpe:2.3:a:ibm:spectrum_scale:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.4
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
48.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 29th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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/191600
VDB EntryVendor Advisory
ibm.com / support/pages/node/6565399
PatchVendor Advisory
ibm.com / support/pages/node/6589109
PatchVendor Advisory