On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can…
Priority MEDIUM 54CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.
Why it matters now
EPSS 0.09129 95th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:broadcom:bcm4355c0_firmware:9.44.78.27.0.1.56:*:*:*:*:*:*:* | 9.44.78.27.0.1.56 | Vulnerable | Broadcom |
| cpe:2.3:h:broadcom:bcm4355c0:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Broadcom |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 11.0 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 11.0 | Vulnerable | Apple |
- cpe:2.3:o:broadcom:bcm4355c0_firmware:9.44.78.27.0.1.56:*:*:*:*:*:*:* Versions 9.44.78.27.0.1.56 Vulnerable ·Broadcom
- cpe:2.3:h:broadcom:bcm4355c0:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Broadcom
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 11.0 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 11.0 Vulnerable ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11120
- 2026-10-03 Alias added: GHSA-g3j7-grgr-pgxq
References
Exploit 3
Sources
- CVE-2017-11120 · CVE Program
- CVE-2017-11120 · NVD
- FIRST EPSS
- GHSA-g3j7-grgr-pgxq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences