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CVE-2016-8632

25
FAUCET Score

CVE-2016-8632 describes a heap-based buffer overflow vulnerability in the Linux kernel's TIPC messaging function (tipc_msg_build) affecting versions through 4.8.11. This flaw allows a local attacker with CAP_NET_ADMIN capabilities to achieve privilege escalation or cause a denial of service. With a CVSS score of 7.8 (High), the vulnerability is easily exploitable locally with low attack complexity, potentially leading to full compromise of confidentiality, integrity, and availability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.16, < 3.2.85CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.16.40CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 4.1.37CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.2, < 4.4.65CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.8.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 72nd percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

Vendor Advisories (1)

redhatCVE-2016-8632Moderate

kernel: TIPC subsystem: tipc_msg_build() doesn't validate MTU, may cause memory corruption.

Nov 7, 2016

References

bugzilla.redhat.com / show_bug.cgi
Issue Tracking
mail-archive.com / netdev%40vger.kernel.org/msg133205.html
openwall.com / lists/oss-security/2016/11/08/5
Mailing ListThird Party Advisory
securityfocus.com / bid/94211
Third Party AdvisoryVDB Entry