CVE-2026-76870 Netcore NR255-V - Out of Bounds Read

Netcore NR255-V 1.5.130703 contains an out-of-bounds read vulnerability caused by short firmware uploads in the mtd_write pre-flash validation routine, letting attackers trigger out-of-bounds reads via truncated firmware upload.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.40% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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