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CVE-2020-5353

28
FAUCET Score

CVE-2020-5353 describes a critical vulnerability in Dell Isilon OneFS versions 8.2.2 and earlier, and Dell EMC PowerScale OneFS version 9.0.0. The default NFS configuration allows unauthorized access to the 'admin' home directory, enabling an attacker to leverage a spoofed Unique Identifier (UID) to rewrite sensitive files. This vulnerability carries a CVSS score of 8.8 (HIGH), indicating a network-based attack with low complexity that can lead to complete compromise of confidentiality, integrity, and availability. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.2.2CPE matchmatch criteria
cpe:2.3:a:dell:emc_isilon_onefs:*:*:*:*:*:*:*:*
9.0.0CPE matchmatch criteria
cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 54th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

support.emc.com / kb/542721
PatchVendor Advisory