CVE-2026-30795 (GCVE-0-2026-30795)
Vulnerability from cvelistv5 – Published: 2026-03-05 15:27 – Updated: 2026-03-17 14:31
VLAI
EPSS
VEX
Title
RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure
Summary
Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks. This vulnerability is associated with program files src/hbbs_http/sync.Rs and program routines Heartbeat JSON payload construction (preset-address-book-password).
This issue affects RustDesk Client: through 1.4.5.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 14:31 UTC
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rustdesk/rustdesk | product |
| https://docs.google.com/document/d/e/2PACX-1vSds6… | third-party-advisoryexploit |
| https://www.vulsec.org/ | vdb-entrythird-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| rustdesk-client | RustDesk Client |
Affected:
0 , ≤ 1.4.5
(custom)
cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:windows:*:*:*:*:* cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:macos:*:*:*:*:* cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:linux:*:*:*:*:* cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:ios:*:*:*:*:* cpe:2.3:a:rustdesk-client:rustdesk_client:*:*:android:*:*:*:*:* |
Date Public
2026-03-05 13:45
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"value": "Cleartext Transmission of Sensitive Information vulnerability in rustdesk-client RustDesk Client rustdesk-client on Windows, MacOS, Linux, iOS, Android (Heartbeat sync loop modules) allows Sniffing Attacks.\u003cp\u003e This vulnerability is associated with program files \u003ctt\u003esrc/hbbs_http/sync.Rs\u003c/tt\u003e and program routines \u003ctt\u003eHeartbeat JSON payload construction (preset-address-book-password)\u003c/tt\u003e.\u003c/p\u003e\u003cp\u003eThis issue affects RustDesk Client: through 1.4.5.\u003c/p\u003e"
}
],
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}
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}
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"metrics": [
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"Safety": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
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"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
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"tags": [
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{
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"url": "https://docs.google.com/document/d/e/2PACX-1vSds6jjpd38oO_yIAyd1HYtKNUuea-I-ozAPpGhYI7QgAU-QGJ7D8a4rOZVj1vmiUXV1EcdRHf9aZAW/pub"
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{
"tags": [
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],
"url": "https://www.vulsec.org/"
}
],
"solutions": [
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"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "Hash or encrypt the credential before transmission. Transition to SRP."
}
],
"value": "Hash or encrypt the credential before transmission. Transition to SRP."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "RustDesk HTTP Client Silently Accepts Invalid TLS Certificates After Handshake Failure",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Avoid setting address book passwords; use account-based access only"
}
],
"value": "Avoid setting address book passwords; use account-based access only"
}
],
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "2fdefc65-d750-4b8d-96ee-6e2c0c42dbfe",
"assignerShortName": "VULSec",
"cveId": "CVE-2026-30795",
"datePublished": "2026-03-05T15:27:16.596Z",
"dateReserved": "2026-03-05T14:13:37.203Z",
"dateUpdated": "2026-03-17T14:31:15.664Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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