EUVD-2026-80062
GHSA-v2f8-63qj-h7gx
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable CGI endpoint with no interaction, but a valid low-privilege account is required, so PR:L; disclosure only, so C:H/I:N/A:N.
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
Lifecycle Timeline
2DescriptionCVE.org
Netcore NR255-V version 1.5.130703 contains a sensitive information disclosure vulnerability in the user_pass_show.cgi component. Low-privilege attackers can exploit this flaw via ui_config_2.xml and misc.js to disclose router credentials.
AnalysisAI
Netcore NR255-V firmware 1.5.130703 exposes router account credentials through the user_pass_show.cgi endpoint, which can be reached and abused by an attacker holding only a low-privilege account on the device's web management interface. Successful exploitation hands over stored administrator/PPPoE credentials, enabling full takeover of the router and any network traffic it mediates. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H) describes a network-reachable, low-complexity attack that requires a low-privilege account and yields high confidentiality loss only - no integrity or availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch or fixed firmware version is identified at time of analysis, so the primary action is interim hardening rather than upgrading. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-522 – Insufficiently Protected Credentials
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today