Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local…
Priority LOW 30CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.
Why it matters now
EPSS 0.00502 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* | 4.4.0 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:* | 4.4.1 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:* | 4.4.2 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:* | 4.4.3 | Vulnerable | Xen |
| cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:* | 4.4.4 | Vulnerable | Xen |
- cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:* Versions 4.4.0 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:* Versions 4.4.1 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.4.2:*:*:*:*:*:*:* Versions 4.4.2 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.4.3:*:*:*:*:*:*:* Versions 4.4.3 Vulnerable ·Xen
- cpe:2.3:o:xen:xen:4.4.4:*:*:*:*:*:*:* Versions 4.4.4 Vulnerable ·Xen
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Enterprise Linux 5
Timeline
- 2026-10-02 Threatist record created from CVE-2016-7154
- 2026-10-03 Alias added: GHSA-6m92-fjpm-vf6h
References
More Xen vulnerabilities
- TI-2012-00210 The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix… CVSS 2.0HIGH 7.2
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2015-04333 The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used… CVSS 2.0HIGH 9.3
- TI-2015-06741 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows… CVSS 3.1CRITICAL 10.0
- TI-2018-06436 A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures… CVSS 3.0HIGH 7.8
- TI-2024-20522 x86: Incorrect logic for BTC/SRSO mitigations CVSS 3.1HIGH 7.5
Sources
- CVE-2016-7154 · CVE Program
- CVE-2016-7154 · NVD
- FIRST EPSS
- GHSA-6m92-fjpm-vf6h · GitHub Advisory Database · CC BY 4.0
- CVE-2016-7154 · Red Hat security data · CC BY 4.0
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