CVE-2026-88708
Received Received - Intake

Off-by-One Memory Corruption in ASUS Router Firmware

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: ASUS

Description
An off-by-one error in certain ASUS Router firmware allows an unauthenticated nearby user to send a packet with a specific header length, potentially overwriting memory and causing the affected service to crash. Refer to the ' Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-88708
EUVD
EUVD-2026-120743

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
asus router_firmware *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-193 A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

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Executive Summary

This vulnerability is an off-by-one error in ASUS Router firmware that allows an unauthenticated nearby attacker to send a packet with a specific header length. This can overwrite memory and cause the affected service to crash.

Detection Guidance

This vulnerability involves an off-by-one error in ASUS Router firmware triggered by a packet with a specific header length. Detection requires monitoring for malformed packets or service crashes. Check ASUS security advisories for firmware updates and inspect network traffic for unusual patterns matching the described exploit. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to crash the router's service, leading to denial of service. This might disrupt network connectivity or require a reboot to restore functionality.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR or HIPAA if the affected ASUS router firmware is used in environments subject to these regulations. A crash due to memory overwrite may lead to service disruptions or unauthorized access, which could compromise data integrity or confidentiality. However, specific compliance impacts depend on deployment context and mitigations applied.

Mitigation Strategies

Update ASUS Router firmware to the latest version as recommended in the ASUS Security Advisory to address the off-by-one error and memory overwrite issue.

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