CVE-2026-76853: Missing Support for Integrity Check in Netcore NR268
Netcore NR268 firmware version 1.7.121109 has a security check bypass vulnerability due to missing support for integrity check in the restore archive prefix validation. This flaw allows attackers with limited privileges to bypass restrictions on restore archive handling. The vulnerability has a high severity rating with a CVSS 4.0 score of 7.2.
AI Analysis
Technical Summary
CVE-2026-76853 describes a security check bypass vulnerability in Netcore NR268 firmware version 1.7.121109. The issue exists in the parame_put_file.cgi component, specifically in the prefix validation logic of the restore archive handling implemented in put_parame_file_cgi.c. Due to missing integrity checks, attackers can exploit the flawed prefix validation to bypass restrictions intended to control restore archive operations.
Potential Impact
An attacker with low privileges can bypass security checks related to restore archive handling, potentially allowing unauthorized restoration actions. This could lead to unauthorized configuration changes or system state modifications. The CVSS 4.0 score of 7.2 indicates a high severity impact with network attack vector, low attack complexity, no user interaction required, and high impact on integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to the affected firmware version and monitor for unusual restore archive activities.
CVE-2026-76853: Missing Support for Integrity Check in Netcore NR268
Description
Netcore NR268 firmware version 1.7.121109 has a security check bypass vulnerability due to missing support for integrity check in the restore archive prefix validation. This flaw allows attackers with limited privileges to bypass restrictions on restore archive handling. The vulnerability has a high severity rating with a CVSS 4.0 score of 7.2.
CVSS v4.0
Score 7.2high
Affected software
Netcore
NR268
pkg:github/draw-ctf/netcore-router-public-refsRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76853 describes a security check bypass vulnerability in Netcore NR268 firmware version 1.7.121109. The issue exists in the parame_put_file.cgi component, specifically in the prefix validation logic of the restore archive handling implemented in put_parame_file_cgi.c. Due to missing integrity checks, attackers can exploit the flawed prefix validation to bypass restrictions intended to control restore archive operations.
Potential Impact
An attacker with low privileges can bypass security checks related to restore archive handling, potentially allowing unauthorized restoration actions. This could lead to unauthorized configuration changes or system state modifications. The CVSS 4.0 score of 7.2 indicates a high severity impact with network attack vector, low attack complexity, no user interaction required, and high impact on integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to the affected firmware version and monitor for unusual restore archive activities.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T21:47:08.935Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9c06c55bf5e2cf56f823a
Added to database: 09/15/2026, 22:02:20 UTC
Last enriched: 09/15/2026, 22:24:21 UTC
Last updated: 09/16/2026, 03:06:25 UTC
Views: 2
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