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CVE-2015-3215

20
FAUCET Score

CVE-2015-3215 describes a denial-of-service vulnerability in the NetKVM Windows Virtio driver, affecting Red Hat virtio-win products. Remote attackers can exploit this by sending a malformed IP packet with a crafted length value that fails to account for IP options, leading to a guest system crash. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, resulting in a complete loss of availability. There is currently no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or ExploitDB entries, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:redhat:virtio-win:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 59th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 6Fixed in: virtio-win-0:1.7.4-1.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 7Fixed in: virtio-win-0:1.7.4-1.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: virtio-win

Vendor Advisories (1)

redhatCVE-2015-3215Important

virtio-win: netkvm: malformed packet can cause BSOD

Dec 15, 2014

References

rhn.redhat.com / errata/RHSA-2015-1043.html
Vendor Advisory
rhn.redhat.com / errata/RHSA-2015-1044.html
Vendor Advisory
github.com / YanVugenfirer/kvm-guest-drivers-windows/commit/723416fa4210b7464b28eab89cc76252e6193ac1
PatchThird Party Advisory
github.com / YanVugenfirer/kvm-guest-drivers-windows/commit/fbfa4d1083ea84c5429992ca3e996d7d4fbc8238
PatchThird Party Advisory
redhat.com / security/data/cve/CVE-2015-3215.html
Vendor Advisory