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CVE-2016-3955

44
FAUCET Score

CVE-2016-3955 describes an out-of-bounds write vulnerability in the usbip_recv_xbuff function within the Linux kernel's USB/IP module, affecting various distributions including Canonical and Debian. This critical vulnerability (CVSS 9.8) can be exploited remotely with low complexity, potentially leading to a denial of service or other significant impacts. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
25.93%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2593 is in the 95th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2016-3955Important

Kernel: usbip: buffer overflow by trusting length of incoming packets

Mar 17, 2016

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
lists.opensuse.org / opensuse-security-announce/2016-06/msg00044.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/b348d7dddb6c4fbfc810b7a0626e8ec9e29f7cbb
PatchVendor Advisory
debian.org / security/2016/dsa-3607
Third Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.5.3
Vendor Advisory
openwall.com / lists/oss-security/2016/04/19/1
Mailing ListThird Party Advisory
securityfocus.com / bid/86534
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2989-1
Third Party Advisory
ubuntu.com / usn/USN-2996-1
Third Party Advisory
ubuntu.com / usn/USN-2997-1
Third Party Advisory
ubuntu.com / usn/USN-2998-1
Third Party Advisory
ubuntu.com / usn/USN-3000-1
Third Party Advisory
ubuntu.com / usn/USN-3001-1
Third Party Advisory
ubuntu.com / usn/USN-3002-1
Third Party Advisory
ubuntu.com / usn/USN-3003-1
Third Party Advisory
ubuntu.com / usn/USN-3004-1
Third Party Advisory