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Vulnerability record · CVE-2017-11120 · published 28 September 2017

CVE-2017-11120: Broadcom bcm4355c0 firmware memory buffer overflow vulnerability

Broadcom · Bcm4355c0 Firmware

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.

9.8 CVSS 3.0 Critical EPSS 9.1% · top 4.9% CWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 10.0
9.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
22References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/100984 Third Party AdvisoryVDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1289 ExploitIssue TrackingThird Party Advisory
https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html Mailing ListThird Party Advisory
https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html Mailing ListThird Party Advisory
https://source.android.com/security/bulletin/2017-09-01 Third Party Advisory
https://support.apple.com/HT208112 Third Party Advisory
https://support.apple.com/HT208113 Third Party Advisory
https://support.apple.com/en-us/HT208112 Third Party Advisory
https://support.apple.com/en-us/HT208113 Third Party Advisory
https://www.exploit-db.com/exploits/42784/ ExploitThird Party AdvisoryVDB Entry
http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/100984 Third Party AdvisoryVDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1289 ExploitIssue TrackingThird Party Advisory
https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html Mailing ListThird Party Advisory
https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html Mailing ListThird Party Advisory
https://source.android.com/security/bulletin/2017-09-01 Third Party Advisory
https://support.apple.com/HT208112 Third Party Advisory
https://support.apple.com/HT208113 Third Party Advisory
https://support.apple.com/en-us/HT208112 Third Party Advisory
https://support.apple.com/en-us/HT208113 Third Party Advisory
https://www.exploit-db.com/exploits/42784/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-11120), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.