Acer Wave 7 router: Hardcoded Cryptographic Key

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Summary

CVECVE-2026-49201
StatePUBLISHED
AssignerAcer
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-29 11:16:17 UTC
Updated2026-05-29 14:46:09 UTC
DescriptionThe upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.

Risk And Classification

Primary CVSS: v4.0 10 CRITICAL from 8fc372e3-d9c5-46e4-9410-38469745c639

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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

EPSS: 0.000230000 probability, percentile 0.069420000 (date 2026-06-01)

Problem Types: CWE-798 | CWE-798 CWE-798: Using Hardcoded Credentials

VersionSourceTypeScoreSeverityVector
4.08fc372e3-d9c5-46e4-9410-38469745c639Secondary10CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/C...
4.0CNACVSS10CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS v4.0 Breakdown

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

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 Acer Wave 7 Router affected T7c_GBL_1.01.000055 * custom Windows

References

ReferenceSourceLinkTags
community.acer.com/en/kb/articles/19673 8fc372e3-d9c5-46e4-9410-38469745c639 community.acer.com
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: Gergo Pap (en)

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