CVE-2020-5355: dell emc_isilon_onefs Incorrect Default Permissions
CVSS: 4.3v3.1MediumModified
Published 21-10-2022Last modified 07-05-2025
Vulnerability summary
CVE-2020-5355 is a medium (CVSS 4.3) Incorrect Default Permissions vulnerability in dell emc_isilon_onefs. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.47%
0%100%
Low · +0.06 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 21-10-2022PublishedVulnerability first disclosed.
- 07-05-2025Last modifiedVulnerability information updated.
Description
The Dell Isilon OneFS versions 8.2.2 and earlier SSHD process improperly allows Transmission Control Protocol (TCP) and stream forwarding. This provides the remotesupport user and users with restricted shells more access than is intended.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 4.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NSourcesAll 2 agree
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.06 pp
From 0.41% on 18-09-2026
18-09-202618-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Dell2 products
- emc_isilon_onefs≤ 8.2.2
- isilon onefs≥ unspecified, < 8.2.2
1 vendor · 2 products
References
1 links- support.emc.com/kb/543561Vendor Advisory