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CVE-2017-11122

20
FAUCET Score

CVE-2017-11122 describes an information leak vulnerability in Broadcom BCM4355C0 Wi-Fi chips (firmware version 9.44.78.27.0.1.56), impacting Apple and Broadcom products utilizing these chips, including iPhone OS and tvOS. This flaw, stemming from insufficient length validation during ICMPv6 router advertisement offloading, allows an unauthenticated attacker to remotely extract sensitive information. Rated with a CVSS score of 7.5 (High), the vulnerability presents a significant risk for data confidentiality. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.44.78.27.0.1.56CPE matchmatch criteria
cpe:2.3:o:broadcom:bcm4355c0_firmware:*:*:*:*:*:*:*:*
<= 10.3.3CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
<= 10.2.2CPE matchmatch criteria
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.85%
Probability of exploitation in next 30 days
EPSS Percentile
76.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0185 is in the 60th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/144461/Broadcom-ICMPv6-Information-Leak.html
ExploitThird Party AdvisoryVDB Entry
bugs.chromium.org / p/project-zero/issues/detail
ExploitIssue TrackingThird Party AdvisoryVDB Entry
support.apple.com / en-us/HT208112
Third Party Advisory
support.apple.com / en-us/HT208113
Third Party Advisory
support.apple.com / HT208112
Third Party Advisory
support.apple.com / HT208113
Third Party Advisory