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Medium severity · published Sep 15, 2026
CVE-2026-76863
Netcore NR255-V 1.5.130703 Sensitive Information Disclosure via QoS Bandwidth Plan Routes
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in the mod_qos_bandwidth plan.json handling within filter_conns_dump_cgi.c and IGD_CgiCall.c. Authenticated users with broad roles can access these QoS read routes to obtain live network telemetry beyond their intended privilege level.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NR
NR255-V · Netcore
1.5.130703 · source: vendor
Affected product
NR
NR255-V
Netcore
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76863
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76863
github.com
https://github.com/draw-ctf/netcore-router-public-refs/blob/main/2026.08.19-netcore-nr255v-qos-telemetry-disclosure.md
www.vulncheck.com
https://www.vulncheck.com/advisories/netcore-nr255-v-1.5.130703-sensitive-information-disclosure-via-qos-bandwidth-plan-routes
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