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CVE-2016-9797

16
FAUCET Score

CVE-2016-9797 describes a buffer over-read vulnerability in BlueZ 5.42, specifically within the "l2cap_dump" function in "tools/parser/l2cap.c". This flaw can be triggered by processing a maliciously crafted dump file, leading to a denial of service through a hcidump crash. Rated with a CVSS v3.0 score of 5.3 (MEDIUM), this vulnerability has a network attack vector and low attack complexity, requiring no user interaction. The primary impact is limited to availability, causing a system crash rather than data compromise or integrity issues. There is no evidence of active exploitation, nor is exploit code publicly available in Metasploit, Nuclei, or ExploitDB. The vulnerability has received minimal community discussion and media coverage, suggesting a low level of attention and perceived threat.

Impacted Technologies

VendorProductVersion(s)CPE
5.42CPE matchmatch criteria
cpe:2.3:a:bluez:bluez:5.42:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.72%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0372 is in the 85th percentile among its peer group of 23,705 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: bluez-hcidump
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bluez
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bluez

Vendor Advisories (1)

redhatCVE-2016-9797Low

bluez: buffer over-read in l2cap_dump()

Dec 3, 2016

References

lists.opensuse.org / opensuse-security-announce/2019-05/msg00069.html
spinics.net / lists/linux-bluetooth/msg68892.html
ExploitThird Party Advisory
securityfocus.com / bid/94652
Third Party AdvisoryVDB Entry