CVE-2026-76853 (CVSS 8.1)

Description

Netcore NR268 firmware version 1.7.121109 contains a security check bypass vulnerability in the parame_put_file.cgi restore archive prefix validation. Attackers can exploit the flawed prefix check in put_parame_file_cgi.c to bypass restricted restore archive handling.

Is your site exposed to CVE-2026-76853?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.1

HIGH

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

EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.12%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-353 CWE-353

References

Other References

https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr268-restore-bypass.md https://www.vulncheck.com/advisories/netcore-nr268-1.7.121109-security-check-bypass-in-parame-put-file-cgi

Frequently Asked Questions

What is CVE-2026-76853? +

Netcore NR268 firmware version 1.7.121109 contains a security check bypass vulnerability in the parame_put_file.cgi restore archive prefix validation. Attackers can exploit the flawed prefix check in put_parame_file_cgi.c to bypass restricted restore archive handling. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-76853? +

CVE-2026-76853 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0022, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-76853? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-45787 9.1

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.9.5, deterministic AES-192-CBC with a fixed zero IV, constant KDF salt, and …

CVE-2026-17583 8.4

The affected Thermo Fisher Applied Biosystems Genetic Analyzers are vulnerable because .fsa/.hid output files can be edited. An attacker could …

CVE-2024-46917 8.1

Diebold Nixdorf Vynamic Security Suite through 4.3.0 SR01 does not validate file attributes or the contents of /root during integrity …

CVE-2024-27817 7.8

The issue was addressed with improved checks. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and …

CVE-2023-32475 7.6

Dell BIOS contains a missing support for integrity check vulnerability. An attacker with physical access to the system could potentially …

CVE-2026-18536 7.5

Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. The Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo remote sources are …

CVE-2026-76853