CVE-2016-3960

HIGHNVD 8.88.8—

8.8

Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 23.0%
KEV: Not listed

Published

April 19, 2016

Last Modified

May 6, 2026

Advisory Details (4)

Auto-updated May 10, 2026

No patch confirmed yet.

generic

XSA-173 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-173.html

generic

http://www.securityfocus.com/bid/86318

generic

[SECURITY] [DSA 3554-1] xen security update

http://www.debian.org/security/2016/dsa-3554

generic

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http://support.citrix.com/article/CTX209443

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 20:59 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:42 UTCEPSS rescore
2026-05-26 07:16 UTCEPSS rescore

Frequently asked(5)

What is CVE-2016-3960?

CVE-2016-3960 is a high vulnerability published on April 19, 2016. Integer overflow in the x86 shadow pagetable code in Xen allows local guest OS users to cause a denial of service (host crash) or possibly gain privileges by shadowing a superpage mapping.

When was CVE-2016-3960 disclosed?

CVE-2016-3960 was first published in the National Vulnerability Database on April 19, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2016-3960 actively exploited?

CVE-2016-3960 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-3960?

CVE-2016-3960 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2016-3960?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-3960, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2016-3960

📅 Published

🔄 Last Modified

📋 Advisory Details (4)

XSA-173 - Xen Security Advisories

[SECURITY] [DSA 3554-1] xen security update

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Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2016-3960?

Published

Last Modified

Advisory Details (4)

Frequently asked(5)