Vulnerability in Netcore Nr268
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Netcore Nr268 — versions 1.7.121109
Weakness classification (CWE)
References
- github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr2… (third-party-advisory)
- www.vulncheck.com/advisories/netcore-nr268-1.7.121109-security-check-bypass-in-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-76853?
- CVE-2026-76853 is a high-severity vulnerability in Netcore Nr268, classified under CWE-353. CVSS score: 8.1/10. Published 2026-09-15.
- How severe is CVE-2026-76853?
- High severity. CVSS v3 base score is 8.1 out of 10.