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 vulnerabilities affecting Ubuntu products
- In CISA KEV
- 1
- Records also listed in the official catalog
- Beyond CISA KEV
- 0
- Additional exploited CVEs absent from CISA KEV
- Sensor Observed
- 0
- Ubuntu KEVs with sensor-observed exploitation activity
The catalog gap matters for Ubuntu exposure
All one exploited Ubuntu CVEs tracked here are also listed in CISA KEV. Use product ownership and sensor evidence to prioritize within this portfolio.
- 100%
- Covered by CISA
- 0%
- Beyond CISA
- 1
- Product families
Attested Ubuntu CVEs
Search the exploited-vulnerability portfolio, then narrow it to official CISA coverage or the additional records KEV Intelligence 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 |
No Ubuntu CVEs match this search or filter.
Showing 1 of 1 Ubuntu known exploited vulnerabilities.
Recurring weakness patterns
Privilege context switching error account for one mapped occurrence across this Ubuntu KEV portfolio.
Early warning alerts
Get alerts on high-impact exploitation
Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.