Report · Zero Day InitiativeAbout CVE-2026-118608Published 28 Oct 2026

ZDI-26-826: (0Day) (Pwn2Own) Alpine iLX-F511 libanwbtstack.so prh_rfcomm_cc_process_test Out-Of-Bounds Read Information Disclosure Vulnerability

Source Zero Day Initiative

Authoritative record:CVE-2026-118608· Low 3.5

Not known to be exploited · CVSS 3.5 Low.

Data as of 28 Oct 2026, 17:03 UTC

CVSS 3.0 base score

3.5Low

How severe the flaw is on the 0–10 CVSS scale.

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

Attack Vector: Adjacent
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Adjacent: The vulnerable component is bound to the network stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared physical (e.g., Bluetooth or IEEE 802.11) or logical (e.g., local IP subnet) network, or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN to an administrative network zone).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
AlpineiLX-F511	Affected =7.0.000	Fixed in–

AI-suggested

Until an official fix is available, restrict Bluetooth pairing to trusted devices only to reduce exposure.

Description

A low-severity information disclosure vulnerability exists in the Alpine iLX-F511 device's Bluetooth component libanwbtstack.so, specifically in the prh_rfcomm_cc_process_test function. Exploitation requires an attacker to be network-adjacent and able to pair a malicious Bluetooth device with the target system. The vulnerability allows out-of-bounds read leading to sensitive information disclosure. No patch or remediation details are provided.

Impact

Successful exploitation can lead to disclosure of sensitive information on affected Alpine iLX-F511 devices. The attacker must first pair a malicious Bluetooth device, limiting the attack surface to network-adjacent scenarios. The impact is rated low severity by the ZDI.

Summary

CVE-2026-118608 is an out-of-bounds read vulnerability in the prh_rfcomm_cc_process_test function of the libanwbtstack.so Bluetooth component on Alpine iLX-F511 devices. An attacker with the ability to pair a malicious Bluetooth device can exploit this flaw to disclose sensitive information. The Zero Day Initiative assigned a CVSS rating of 3.5, indicating low severity.

References

zerodayinitiative.com/advisories/ZDI-26-826/ (opens in a new tab)

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