CVE-2026-76852

DiscoveredSep 15, 2026UpdatedSep 16, 2026

Netcore NR268 firmware version 1.7.121109 has an improper integrity verification flaw in mtd_write allowing forged firmware authenticity checks. Attackers can exploit put_file.cgi and check_image_uuid.c to bypass firmware signature validation and load unauthorized firmware images.

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CVSS v3.1

8.8 HIGH

EPSS

0.27%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

EPSS Trend

Sep 17, 2026 → Sep 25, 2026

▲ 0.04pp

0.23% → 0.27% over 2 tracked changes

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

ScopeUNCHANGED

ConfidentialityHIGH

IntegrityHIGH

AvailabilityHIGH

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

Connections

1 relationships

CWE-354

source

Timeline

disclosure → media coverage

Sep 15, 2026

Disclosure — published as a CVE record.