Hardcoded Cryptographic Key Vulnerability in GX Earth ONT Models

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Summary

CVECVE-2026-45433
StatePUBLISHED
AssignerCERT-In
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-04 14:16:41 UTC
Updated2026-06-04 15:26:10 UTC
DescriptionThis vulnerability exists in GX Earth 2022 ONT models due to the presence of hardcoded RSA private key within the device firmware. A remote attacker could exploit this vulnerability by extracting the cryptographic private key from the firmware, which could lead to decryption of HTTPS traffic and Man-in-the-Middle (MITM) attacks on the targeted device.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

Problem Types: CWE-321 | CWE-321 CWE-321 Use of hard-coded cryptographic key

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GX INDIA GX Earth 2022 affected version E2022 - 3.1.2A Not specified
CNA GX INDIA GX Earth 2022 affected version E2022 - 3.1.5AV Not specified
CNA GX INDIA GX Earth 2022 affected version E2022 - 1.1ASL Not specified
CNA GX INDIA GX Earth 1010 affected version E1010-1.1ASL Not specified

References

ReferenceSourceLinkTags
www.cert-in.org.in/s2cMainServlet [email protected] www.cert-in.org.in
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: This vulnerability is reported by Anmol Bakshi. (en)

Additional Advisory Data

Solutions

CNA: Upgrade GX Earth 2022 to latest firmware version E2022-3.1.5A, E2022-3.1.8AV or E2022-1.2ASL. Upgrade GX Earth 1010 to latest firmware version E1010-1.2ASL

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