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CVE-2020-5383

20
FAUCET Score

CVE-2020-5383 is a buffer overflow vulnerability in the Likewise component of Dell EMC Isilon OneFS (versions 8.2.2) and Dell EMC PowerScale OneFS (versions 9.0.0). This vulnerability allows a remote, unauthenticated attacker to cause a process restart, leading to a denial of service. With a CVSS score of 5.3 (Medium), it can be exploited over the network with low attack complexity and no user interaction, resulting in a low impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
8.2.2CPE matchmatch criteria
cpe:2.3:a:dell:emc_isilon:8.2.2:*:*:*:*:*:*:*
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

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 38th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

dell.com / support/security/en-us/details/546005/DSA-2020-189-Dell-EMC-Isilon-OneFS-and-Dell-EMC-PowerScale-Security-Update-for-Buffer-Overflow-Vu
Vendor Advisory