Ubuntu vendor intelligence
Ubuntu Known Exploited Vulnerabilities
Track evidence-backed exploitation affecting Ubuntu products, including the gap beyond CISA KEV, confidence assessments, sensor observations, and practical response context.
- Total KEVs
- 1
- Known exploited vulnerability affecting Ubuntu products
- In CISA KEV
- 1
- Records also listed in the official catalog
- Beyond CISA KEV
- 0
- Additional exploited vulnerabilities absent from CISA KEV
- Sensor Observed
- 0
- Ubuntu KEVs with sensor-observed exploitation activity
Review Ubuntu exploitation against the products you run
The single exploited Ubuntu vulnerability tracked by Previdian is also listed in CISA KEV.
- 100%
- Covered by CISA
- 0%
- Beyond CISA
- 1
- Product families
Attested Ubuntu vulnerabilities
1 known exploited vulnerability in this exploited-vulnerability portfolio. Search, then narrow it to official CISA coverage or the additional records Previdian tracks beyond the catalog.
How exploitation is verified| CVE / description | Product | Confidence | CISA KEV | Added |
|---|---|---|---|---|
|
CVE-2021-3493
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on... |
linux kernel | Confirmed | In CISA | 20 Oct 2022 |
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Showing 1 of 1 on this page (1 Ubuntu known exploited vulnerability).
Recurring weakness patterns
Privilege context switching error accounts for one mapped occurrence across this Ubuntu KEV portfolio.