Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such…
Priority LOW 21CWE-862Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-862.
Summary
Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.
Why it matters now
EPSS 0.00398 34th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | up to 4.14.0 | Vulnerable | Xen |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* Versions up to 4.14.0 Vulnerable ·Xen
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28368
- 2026-10-03 Alias added: GHSA-hg2f-7x6w-x2hx
References
Advisory 7
- https://platypusattack.com
- https://www.zdnet.com/article/new-platypus-attack-can-steal-data-from-intel-cpus/
- http://xenbits.xen.org/xsa/advisory-351.html
- FEDORA-2020-2684e0fadd
- [oss-security] 20201126 Xen Security Advisory 351 v2 (CVE-2020-28368) - Information leak via power sidechannel
- FEDORA-2020-d71fa5f0b9
- DSA-4804
Sources
- CVE-2020-28368 · CVE Program
- CVE-2020-28368 · NVD
- FIRST EPSS
- GHSA-hg2f-7x6w-x2hx · GitHub Advisory Database · CC BY 4.0
- CVE-2020-28368 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences