How severe is CVE-2026-13489?

CVE-2026-13489 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-13489 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-13489?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-13489 published?

CVE-2026-13489 was published on 2026-06-28 and last updated on 2026-06-29.

CVE-2026-13489

CVE-2026-13489 is a low-severity vulnerability with a CVSS 3.x base score of 3.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-662.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
CVSS v2: 2.1
CVSS v4: 1.3
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-662
Published: 2026-06-28
Last modified: 2026-06-29

Description

A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.

Frequently asked questions

What is CVE-2026-13489?: A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
How severe is CVE-2026-13489?: CVE-2026-13489 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-13489 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-13489?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-13489 published?: CVE-2026-13489 was published on 2026-06-28 and last updated on 2026-06-29.

References

Other CWE-662 vulnerabilities

CVE-2018-15555 — Critical (CVSS 9.8): On Telus Actiontec WEB6000Q v1.1.02.22 devices, an attacker can login with root level access with the user "root" and…
CVE-2024-32644 — Critical (CVSS 9.1): Evmos is a scalable, high-throughput Proof-of-Stake EVM blockchain that is fully compatible and interoperable with…
CVE-2026-53277 — High (CVSS 8.8): In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Take the SRCU lock for page table…
CVE-2022-23005 — High (CVSS 8.7): Western Digital has identified a weakness in the UFS standard that could result in a security vulnerability. This…
CVE-2016-8368 — High (CVSS 8.6): An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all…
CVE-2022-1931 — High (CVSS 8.1): Incorrect Synchronization in GitHub repository polonel/trudesk prior to 1.2.3.

Browse all CWE-662 vulnerabilities →