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CVE-2026-9770

Hardcoded Cryptographic Key Information Disclosure Vulnerability on TP-Link Kasa EC70 and EC71

Published: Jul 15, 2026Updated: Aug 6, 2026 Sources: CVE List NVDCWE-321
5.3MEDIUM
NVD MITRE
EPSS Score
0.4%
Top 71.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Kasa EC71 v4 and EC70 v4 firmware contains a static cryptographic private key stored in a read-only filesystem that is shared across devices.  An attacker with access to the firmware image can extract the embedded key.  Successful exploitation may allow an unauthenticated attacker on the same network to use this key in the web management service, compromising the confidentiality of encrypted communications. This may enable passive decryption of traffic or active man-in-the-middle (MITM) attacks

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:HPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-321

Affected Products

TP-Link Systems Inc.
commercial·CNaka tp-link
Kasa EC71 v4On-prem
Networking Infrastructure / router-switch
Kasa EC70 v4On-prem
Networking Infrastructure / router-switch
tp-link
commercial·TWaka tp link
kasa ec71 firmwareMixed
Networking Infrastructure / router-switch
kasa ec70 firmwareMixed
Networking Infrastructure / router-switch

Exploitability

Official Patch Available

References

https://www.tp-link.com/en/support/download/ec71/v4/#Firmware-Release-Notes
tp-link.com
https://www.tp-link.com/us/support/download/ec71/v4/#Firmware-Release-Notes
tp-link.com
https://www.tp-link.com/us/support/download/ec70/v4/#Firmware-Release-Notes
tp-link.com
and 2 more references View all →
News mentions
1

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