A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. (CVE-2026-18588)
A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
AI Analysis
Technical Summary
CVE-2026-18588 is a critical vulnerability affecting the Wavlink WL-NU516U1 708c073-mt7628 device. The issue arises from improper handling of the CONTENT_LENGTH argument in the fgets function of the nas.cgi file, leading to a stack-based buffer overflow (CWE-119). This vulnerability can be exploited remotely without authentication or user interaction, potentially resulting in full system compromise. The vendor responded quickly and released a fixed version of the affected product.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution with full system privileges, compromising confidentiality, integrity, and availability of the affected device. Given the CVSS score of 9.8, the impact is critical, allowing attackers to fully control the device remotely.
Mitigation Recommendations
A fixed version of the affected product has been released by the vendor. Users should upgrade to the fixed version as soon as possible to remediate this vulnerability. Patch status is confirmed by the vendor's professional and prompt response. No additional mitigation steps are indicated beyond applying the official fix.
A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. (CVE-2026-18588)
Description
A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18588 is a critical vulnerability affecting the Wavlink WL-NU516U1 708c073-mt7628 device. The issue arises from improper handling of the CONTENT_LENGTH argument in the fgets function of the nas.cgi file, leading to a stack-based buffer overflow (CWE-119). This vulnerability can be exploited remotely without authentication or user interaction, potentially resulting in full system compromise. The vendor responded quickly and released a fixed version of the affected product.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution with full system privileges, compromising confidentiality, integrity, and availability of the affected device. Given the CVSS score of 9.8, the impact is critical, allowing attackers to fully control the device remotely.
Mitigation Recommendations
A fixed version of the affected product has been released by the vendor. Users should upgrade to the fixed version as soon as possible to remediate this vulnerability. Patch status is confirmed by the vendor's professional and prompt response. No additional mitigation steps are indicated beyond applying the official fix.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-hfj9-7vrj-jwv3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-18588"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6a71067cbf32cb7a34396b28
Added to database: 08/03/2026, 21:22:04 UTC
Last enriched: 08/03/2026, 21:39:12 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 124
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