CVE-2021-21565
CVE-2021-21565 is a medium-severity vulnerability in Dell Powerscale Onefs with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-834.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-834
- Affected product: Dell Powerscale Onefs
- Published:
- Last modified:
Description
Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.
Frequently asked questions
- What is CVE-2021-21565?
- Dell PowerScale OneFS versions 9.1.0.3 and earlier contain a denial of service vulnerability. SmartConnect had an error condition that may be triggered to loop, using CPU and potentially preventing other SmartConnect DNS responses.
- How severe is CVE-2021-21565?
- CVE-2021-21565 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2021-21565 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-21565?
- CVE-2021-21565 affects Dell Powerscale Onefs. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-21565?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-21565 published?
- CVE-2021-21565 was published on 2021-08-03 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:dell:powerscale_onefs:*:*:*:*:*:*:*:*
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