Broadcom firmware before summer 2014 on Nexus 5 BCM4335C0 2012-12-11, Raspberry Pi 3 BCM43438A1 2014-06-02, and unspecifed other devices doe
Broadcom firmware before summer 2014 on Nexus 5 BCM4335C0 2012-12-11, Raspberry Pi 3 BCM43438A1 2014-06-02, and unspecifed other devices does not properly restrict LMP commnds and executes certain memory contents upon receiving an LMP command, as demonstrated by executing an HCI command.
- Published
- Jun 7, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.0% · 62th percentile
- CWE
- CWE-732
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Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| broadcom | bcm4335c0 firmware | cpe:2.3:o:broadcom:bcm4335c0_firmware |
| broadcom | bcm4335c0 | cpe:2.3:h:broadcom:bcm4335c0 |
| broadcom | bcm43438a1 firmware | cpe:2.3:o:broadcom:bcm43438a1_firmware |
| broadcom | bcm43438a1 | cpe:2.3:h:broadcom:bcm43438a1 |
| cypress | cyw20702a1kwfbg firmware | cpe:2.3:o:cypress:cyw20702a1kwfbg_firmware |
| cypress | cyw20702a1kwfbg | cpe:2.3:h:cypress:cyw20702a1kwfbg |
| cypress | cyw20702a1kwfbgt firmware | cpe:2.3:o:cypress:cyw20702a1kwfbgt_firmware |
| cypress | cyw20702a1kwfbgt | cpe:2.3:h:cypress:cyw20702a1kwfbgt |
| cypress | cyw20702b0kwfbg firmware | cpe:2.3:o:cypress:cyw20702b0kwfbg_firmware |
| cypress | cyw20702b0kwfbg | cpe:2.3:h:cypress:cyw20702b0kwfbg |
| cypress | cyw20702b0kwfbgt firmware | cpe:2.3:o:cypress:cyw20702b0kwfbgt_firmware |
| cypress | cyw20702b0kwfbgt | cpe:2.3:h:cypress:cyw20702b0kwfbgt |
and 114 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- broadcom bcm4335c0 firmware2012-12-11
- broadcom bcm43438a1 firmware2014-06-02
- cypress cyw20702a1kwfbg firmwareall versions
- cypress cyw20702a1kwfbgt firmwareall versions
- cypress cyw20702b0kwfbg firmwareall versions
- cypress cyw20702b0kwfbgt firmwareall versions
- cypress cyw20703ua1kffb1g firmwareall versions
- cypress cyw20703ua1kffb1gt firmwareall versions
- cypress cyw20704ua1kffb1g firmwareall versions
- cypress cyw20704ua1kffb1gt firmwareall versions
- cypress cyw20704ua2kffb1g firmwareall versions
- cypress cyw20704ua2kffb1gt firmwareall versions
- cypress cyw20705a1kwfbgt firmwareall versions
- cypress cyw20705b0kwfbg firmwareall versions
- cypress cyw20705b0kwfbgt firmwareall versions
- cypress cyw20706ua1kffb1g firmwareall versions
- cypress cyw20706ua1kffb1gt firmwareall versions
- cypress cyw20706ua1kffb4g firmwareall versions
- cypress cyw20706ua2kffb4g firmwareall versions
- cypress cyw20706ua2kffb4gt firmwareall versions
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-732 · Incorrect Permission Assignment for Critical ResourceCVSS vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Accessing Functionality Not Properly Constrained by ACLsCAPEC-1likelihood: High · High
- Privilege AbuseCAPEC-122likelihood: High · Medium
- Directory IndexingCAPEC-127likelihood: High · Medium
- Using Malicious FilesCAPEC-17likelihood: High · Very High
- Exploiting Incorrectly Configured Access Control Security LevelsCAPEC-180likelihood: High · Medium
- Signing Malicious CodeCAPEC-206Very High
- Hijacking a privileged processCAPEC-234Medium
- Reusing Session IDs (aka Session Replay)CAPEC-60likelihood: High · High
ATT&CK techniques
- File and Directory DiscoveryT1083
- Access Token Manipulation:Token Impersonation/TheftT1134.001
- Server Software Component: Terminal Services DLLT1505.005
- Abuse Elevation Control MechanismT1548
- Use Alternate Authentication Material:Web Session CookieT1550.004
- Subvert Trust Controls:Code SigningT1553.002
- Compromise Client Software BinaryT1554
- Hijack Execution Flow:Executable Installer File Permissions WeaknessT1574.005
- Hijack Execution Flow: ServicesFile Permissions WeaknessT1574.010
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- seclists.org/fulldisclosure/2019/Aug/11
- seclists.org/fulldisclosure/2019/Jul/22
- seclists.org/bugtraq/2019/Aug/21
- source.android.com/security/bulletin/2019-05-01
- support.apple.com/kb/HT210348
- www.broadcom.com/support/resources/product-security-center
Vendor advisories and official records. Exploit/PoC links are deliberately left out.