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CVE-2019-9501

29
FAUCET Score

CVE-2019-9501 describes a heap buffer overflow in the Broadcom wl WiFi driver, specifically affecting Broadcom BCM4339 and Synology products utilizing this firmware. This vulnerability carries a CVSS score of 8.8 (HIGH), indicating it can be exploited remotely by an unauthenticated attacker with low attack complexity, potentially leading to arbitrary code execution or denial-of-service. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, suggesting awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
1.2CPE matchmatch criteria
cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:broadcom:bcm4339_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.9HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.93%
Probability of exploitation in next 30 days
EPSS Percentile
85.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0293 is in the 92nd percentile among its peer group of 1,859 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.quarkslab.com / reverse-engineering-broadcom-wireless-chipsets.html
ExploitThird Party Advisory
kb.cert.org / vuls/id/166939
Third Party AdvisoryUS Government Resource