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CVE-2019-9502

22
FAUCET Score

CVE-2019-9502 is a high-severity heap buffer overflow vulnerability in the Broadcom wl WiFi driver, affecting various Broadcom and Synology products. A remote, unauthenticated attacker can trigger this by sending specially crafted WiFi packets, potentially leading to arbitrary code execution or denial-of-service. While no public exploit code is available and it's not listed in CISA's KEV catalog, the vulnerability has garnered significant media attention and community discussion.

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
2.42%
Probability of exploitation in next 30 days
EPSS Percentile
82.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0242 is in the 90th percentile among its peer group of 1,857 CVEs.

Social Chatter

No social media mentions found for this CVE.

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
Third Party Advisory
kb.cert.org / vuls/id/166939
Third Party AdvisoryUS Government Resource