What is the CVSS score of CVE-2023-23306?

CVE-2023-23306 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Is there a public PoC exploit available for CVE-2023-23306?

Yes, a public proof-of-concept exploit is available for CVE-2023-23306. Prioritise patching immediately. EPSS: 1.2%.

Connect Iq CVE-2023-23306

Q: Which versions of Connect Iq are affected by CVE-2023-23306?

The `Toybox.Ant.BurstPayload.add` API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation.

CRITICAL

Out-of-bounds Write (CWE-787)

2023-05-23 cve@mitre.org

Memory Corruption Buffer Overflow Connect Iq

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 23, 2023 - 20:15 nvd

CRITICAL 9.8

DescriptionNVD

The Toybox.Ant.BurstPayload.add API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation. A malicious application could create a specially crafted Toybox.Ant.BurstPayload object, call its add method, override arbitrary memory and hijack the execution of the device's firmware.

AnalysisAI

The Toybox.Ant.BurstPayload.add API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. The Toybox.Ant.BurstPayload.add API method in CIQ API version 2.2.0 through 4.1.7 suffers from a type confusion vulnreability, which can result in an out-of-bounds write operation. A malicious application could create a specially crafted Toybox.Ant.BurstPayload object, call its add method, override arbitrary memory and hijack the execution of the device's firmware. Affected products include: Garmin Connect-Iq. Version information: version 2.2.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).