CVE-2017-11121 is a critical vulnerability affecting Broadcom BCM4355C0 Wi-Fi chips and devices utilizing them, including Apple iOS and tvOS products. It involves specially crafted over-the-air Fast Transition frames that can cause heap and/or stack overflows in the Wi-Fi firmware. This flaw carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and potential for complete compromise (confidentiality, integrity, availability). While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
9.44.78.27.0.1.56CPE matchmatch criteria | cpe:2.3:o:broadcom:bcm4355c0_firmware:9.44.78.27.0.1.56:*:*:*:*:*:*:* | ||
< 11.0CPE matchmatch criteria | cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | ||
< 11.0CPE matchmatch criteria | cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.