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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Current Description
Cleartext Transmission of Sensitive Information, Insufficiently Protected Credentials vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Address book sync, Heartbeat sync loop modules) allows Sniffing Attacks.
The client places the preset address-book password verbatim into the heartbeat sync JSON body (src/hbbs_http/sync.rs). Over an intact HTTPS session it is not exposed in transit, but it is a reusable shared secret rather than a zero-knowledge proof, so it is recovered by any party that becomes the API endpoint - under the automatic invalid-certificate TLS downgrade (CVE-2026-30794) or a re-homed/rogue API server (CVE-2026-30797) - and the leaked credential then authorizes the server-side address book.
This vulnerability is associated with program files src/hbbs_http/sync.rs and program routines heartbeat sync body builder (emits preset-address-book-password).
This issue affects RustDesk Client: through 1.4.8.
Cleartext Transmission of Sensitive Information vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Address book sync API modules) allows Sniffing Attacks. This vulnerability is associated with program files Closed source — API endpoint handling heartbeat sync and program routines Heartbeat API handler (accepts preset-address-book-password in plaintext).
This issue affects RustDesk Server Pro: through 1.7.5.
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Cleartext Transmission of Sensitive Information vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Address book sync API modules) allows Sniffing Attacks. This vulnerability is associated with program files Closed source — API endpoint handling heartbeat sync and program routines Heartbeat API handler (accepts preset-address-book-password in plaintext).
This issue affects RustDesk Server Pro: through 1.7.5.
Cleartext Transmission of Sensitive Information, Insufficiently Protected Credentials vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Address book sync, Heartbeat sync loop modules) allows Sniffing Attacks.
The client places the preset address-book password verbatim into the heartbeat sync JSON body (src/hbbs_http/sync.rs). Over an intact HTTPS session it is not exposed in transit, but it is a reusable shared secret rather than a zero-knowledge proof, so it is recovered by any party that becomes the API endpoint - under the automatic invalid-certificate TLS downgrade (CVE-2026-30794) or a re-homed/rogue API server (CVE-2026-30797) - and the leaked credential then authorizes the server-side address book.
This vulnerability is associated with program files src/hbbs_http/sync.rs and program routines heartbeat sync body builder (emits preset-address-book-password).
This issue affects RustDesk Client: through 1.4.8.
[{"vendor":"rustdesk-server-pro","product":"RustDesk Server Pro","defaultStatus":"affected","collectionURL":"https://github.com/rustdesk/rustdesk-server-pro/releases","packageName":"rustdesk-server-pro","modules":["Address book sync API"],"platforms":["Windows","MacOS","Linux"],"programFiles":["Closed source — API endpoint handling heartbeat sync"],"programRoutines":[{"name":"Heartbeat API handler (accepts preset-address-book-password in plaintext)"}],"versions":[{"version":"0","lessThanOrEqual":"1.7.5","versionType":"custom","status":"affected","changes":[{"at":"Server Pro","status":"affected"}]}]}]
[{"vendor":"rustdesk-client","product":"RustDesk Client","defaultStatus":"affected","collectionURL":"https://github.com/rustdesk/rustdesk/releases","packageName":"rustdesk-client","modules":["Address book sync","Heartbeat sync loop"],"platforms":["Windows","MacOS","Linux","iOS","Android"],"programFiles":["src/hbbs_http/sync.rs"],"programRoutines":[{"name":"heartbeat sync body builder (emits preset-address-book-password verbatim)"}],"repo":"https://github.com/rustdesk/rustdesk,https://github.com/rustdesk/hbb_common","versions":[{"version":"0","lessThanOrEqual":"1.4.8","versionType":"custom","status":"affected","changes":[{"at":"Server Pro","status":"affected"}]}]}]
[{"vendor":"rustdesk-server-pro","product":"RustDesk Server Pro","defaultStatus":"affected","collectionURL":"https://github.com/rustdesk/rustdesk-server-pro/releases","packageName":"rustdesk-server-pro","modules":["Address book sync API"],"platforms":["Windows","MacOS","Linux"],"programFiles":["Closed source — API endpoint handling heartbeat sync"],"programRoutines":[{"name":"Heartbeat API handler (accepts preset-address-book-password in plaintext)"}],"versions":[{"version":"0","lessThanOrEqual":"1.7.5","versionType":"custom","status":"affected","changes":[{"at":"Server Pro","status":"affected"}]}]}]
Reanalysis by NIST3/25/2026 1:50:45 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
AND
OR
*cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:* versions up to (including) 1.4.5
*cpe:2.3:a:rustdesk:rustdesk_server:*:*:*:*:pro:*:*:* versions up to (including) 1.7.5
OR
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:a:rustdesk:rustdesk_server:*:*:*:*:pro:*:*:* versions up to (including) 1.7.5
OR
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
VULSec Labs: https://www.vulsec.org/ Types: Not Applicable
Initial Analysis by NIST3/25/2026 10:41:36 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Added
CPE Configuration
AND
OR
*cpe:2.3:a:rustdesk:rustdesk:*:*:*:*:webclient:*:*:* versions up to (including) 1.4.5
*cpe:2.3:a:rustdesk:rustdesk_server:*:*:*:*:pro:*:*:* versions up to (including) 1.7.5
OR
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Added
Reference Type
VULSec Labs: https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub Types: Exploit, Third Party Advisory
New CVE Received from VULSec Labs3/05/2026 11:16:21 AM
Action
Type
Old Value
New Value
Added
Description
Cleartext Transmission of Sensitive Information vulnerability in rustdesk-server-pro RustDesk Server Pro rustdesk-server-pro on Windows, MacOS, Linux (Address book sync API modules) allows Sniffing Attacks. This vulnerability is associated with program files Closed source — API endpoint handling heartbeat sync and program routines Heartbeat API handler (accepts preset-address-book-password in plaintext).
This issue affects RustDesk Server Pro: through 1.7.5.
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