CVE-2026-32644Network attack vector

TLS traffic decryption via default private keys

Published Apr 27, 2026 · Updated Apr 28, 2026

Hard-coded keys in affected Milesight AIOT camera firmware allow remote attackers to decrypt protected TLS traffic. The firmware deploys SSL certificates whose private keys are identical default values rather than device-unique secrets. Exploitation requires access to captured or intercepted traffic; the shared key defeats the confidentiality and authenticity expected from TLS.

CVSS severity9.2
Critical
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded keys in affected Milesight AIOT camera firmware allow remote attackers to decrypt protected TLS traffic. The firmware deploys SSL certificates whose private keys are identical default values rather than device-unique secrets. Exploitation requires access to captured or intercepted traffic; the shared key defeats the confidentiality and authenticity expected from TLS.

The record

CVE
CVE-2026-32644
Published
Apr 27, 2026
Updated
Apr 28, 2026
Vendor
Milesight
Product
MS-Cxx61-xxxPE
Classifications
CWE-321, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=61.8.0.5-r2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Milesight · MS-Cxx61-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS4466-X4RIWG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · TS2866-X4TVPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-Cxx72-FIPKG1version=0 <=63.8.0.4-r1-NX
Milesight · TS4441-X36REversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-Cxx62-xxxG1version=0 <=63.8.0.5-r3
Milesight · MS-Cxx66-xxxPEversion=0 <=61.8.0.5-r2
Milesight · MS-C5366-X12LPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-C5366-X12LVPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-C5321-FPEversion=0 <=62.8.0.4-r5
Milesight · MS-C2966-X12RLPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-Nxxxx-xxEversion=0 <=7x.9.0.19-r5
Milesight · MS-C2964-RFLPCversion=0 <=T_45.8.0.3-r9
Milesight · TS2866-X4TPCversion=0 <=T_45.8.0.3-r9
Milesight · PM3322-Eversion=0 <=PI_61.8.0.3_LPR-r3
Milesight · MS-Nxxxx-xxHversion=0 <=7x.9.0.19-r5
Milesight · MS-Cxx67-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS8266-FPC/Pversion=0 <=T_45.8.0.3-r9
Milesight · TS2961-X12TPCversion=0 <=T_45.8.0.3-r9
Milesight · TS5366-X12RIPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · TS4466-RFIVPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · MS-C2966-X12RLVPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-Nxxxx-NxEversion=0 <=7x.9.0.19-r5
Milesight · PMC8266-FGPEversion=0 <=PO_61.8.0.4_LPR
Milesight · SC211version=0 <=C_21.1.0.8-r4
Milesight · PMC8266-FPEversion=0 <=PO_61.8.0.4_LPR
Milesight · TS8266-X4RIPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · TS5366-X12PEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-Nxxxx-xxTversion=0 <=7x.9.0.19-r5
Milesight · MS-Cxx66-FIPKG1version=0 <=63.8.0.4-r1-NX
Milesight · MS-Cxx75-xxPDversion=0 <=51.7.0.77-r12
Milesight · MS-Cxx74-PAversion=0 <=3x.8.0.3-r11
Milesight · MS-Cxx64-xPDversion=0 <=51.7.0.77-r12
Milesight · TS5510-GVHversion=0 <=T_47.8.0.4_LPR-r7
Milesight · MS-Cxx52-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS8266-X4PEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · TS5366-X12VPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-C2966-RFLWPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-Nxxxx-xxCversion=0 <=7x.9.0.19-r5
Milesight · TS4466-X4RIVPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · MS-Cxx66-RFIPKG1version=0 <=63.8.0.4-r1-NX
Milesight · TS4466-X4RIPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · TS4466-X4RPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · SP111version=0 <=52.8.0.4-r5
Milesight · MS-Cxx73-xPDversion=0 <=51.7.0.77-r12
Milesight · MS-Cxx72-xxxG1version=0 <=63.8.0.5-r3
Milesight · MS-Cxx41-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS2966-X12TPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-Cxx83-xPDversion=0 <=51.7.0.77-r12
Milesight · MS-Cxx62-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS8266-X4RIWG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · TS4466-X4RWEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-Cxx76-PEversion=0 <=61.8.0.5-r2
Milesight · TS4441-X36RPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · TS5510-GHversion=0 <=T_47.8.0.4_LPR-r6
Milesight · MS-Cxx71-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS2866-X4TGPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-C5361-X12LPCversion=0 <=T_45.8.0.3-r9
Milesight · TS8266-RFIVPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · MS-Cxx66-xxxG1version=0 <=63.8.0.5-r3
Milesight · TS8266-X4WEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · TS2966-X12TVPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-CQxx31-xxxG1version=0 <=CQ_63.8.0.5-r1
Milesight · TS8266-X4VPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · MS-C2972-RFLPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-Cxx72-RFIPKG1version=0 <=63.8.0.4-r1-NX
Milesight · MS-CQxx68-xxxG1version=0 <=CQ_63.8.0.5-r1
Milesight · TS8266-X4RIVPG1version=0 <=T_63.8.0.4_LPR-r3
Milesight · MS-Cxx66-xxxxGOPCversion=0 <=45.8.0.2-AIoT-r4
Milesight · MS-C8477-HPG1version=0 <=63.8.0.4-r3
Milesight · MS-CQxx72-xxxG1version=0 <=CQ_63.8.0.5-r1
Milesight · MS-Nxxxx-xxGversion=0 <=7x.9.0.19-r5
Milesight · TS2867-X5TPCversion=0 <=T_45.8.0.3-r9
Milesight · TS2841-X36TPC/Wversion=0 <=T_45.8.0.3-r9
Milesight · TS2841-X36TPCversion=0 <=T_45.8.0.3-r9
Milesight · MS-C8477-PCversion=0 <=48.8.0.4-r3
Milesight · MS-Cxx72-xxxPEversion=0 <=61.8.0.5-r2
Milesight · TS4466-X4RVPEversion=0 <=T_61.8.0.4_LPR-r3
Milesight · TS5511-GVHversion=0 <=T_47.8.0.4_LPR-r6
Milesight · MS-Cxx65-PEversion=0 <=61.8.0.5-r2
Milesight · MS-Cxx63-PDversion=0 <=51.7.0.77-r12
Milesight · MS-Cxx66-xxxGPEversion=0 <=61.8.0.5-r2

Published CVSS scores

9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2ICS-CERTCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.3MilesightCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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