Threat Intelligence / CVE / CVE-2015-2291

CVE-2015-2291 — Intel Ethernet Diagnostics Driver Iqvw32.sys

CISA KEVRansomware
CVSS v3.1 7.8 (HIGH) · EPSS 4.8% (higher than 89.5% of all scored CVEs) · Priority 10/10 · Published 2017-08-09

As of 2025-10-22, CVE-2015-2291 is a HIGH-severity vulnerability in Intel Ethernet Diagnostics Driver Iqvw32.sys, CVSS v3.1 7.8, EPSS 4.8% (89.5th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-02-10), with a US federal remediation deadline of 2023-03-03, and CISA links it to known ransomware campaigns. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2015-2291, most recently “BYOVD EDR Killer Tooling — Ransomware Groups Weaponizing Signed Kernel Drivers to Blind Endpoint Detection”.

Last updated: 2025-10-22

What is CVE-2015-2291?

(1) IQVW32.sys before 1.3.1.0 and (2) IQVW64.sys before 1.3.1.0 in the Intel Ethernet diagnostics driver for Windows allows local users to cause a denial of service or possibly execute arbitrary code with kernel privileges via a crafted (a) 0x80862013, (b) 0x8086200B, (c) 0x8086200F, or (d) 0x80862007 IOCTL call.

The record classifies CVE-2015-2291 under weakness class CWE-20. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 3 affected-product entries are recorded, across 2 vendors, listed below. The identifier was first published 3322 days ago.

Severity and exploitation probability

CVSS v3.1 base score
7.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (FIRST)
4.8% probability of exploitation in the next 30 days, higher than 89.5% of all scored CVEs
CISA KEV
Listed since 2023-02-10, federal remediation deadline 2023-03-03 — used in known ransomware campaigns
Threadlinqs priority
10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum
Published
2017-08-09, last modified 2025-10-22

Is CVE-2015-2291 being exploited?

CISA added CVE-2015-2291 to the Known Exploited Vulnerabilities catalog on 2023-02-10, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2023-03-03 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2015-2291

The record marks a vendor fix as available for CVE-2015-2291. Patch reference: https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00051&languageid=en-fr. Vendor advisory: https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00051&languageid=en-fr. Because CVE-2015-2291 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2023-03-03. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2015-2291

1 tracked threat in the Threadlinqs corpus references CVE-2015-2291, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2015-2291 are available via the Threadlinqs MCP server (Purple tier). View plans →

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