rustdesk-server-pro RustDesk Server Pro up to 1.7.5 Address Book Sync API cleartext transmission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in rustdesk-server-pro RustDesk Server Pro up to 1.7.5. This issue affects some unknown processing of the component Address Book Sync API Module. The manipulation leads to cleartext transmission. This vulnerability is traded as CVE-2026-30796. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in rustdesk-server-pro RustDesk Server Pro up to 1.7.5. It has been rated as problematic. This issue affects an unknown code of the component Address Book Sync API Module. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality. The summary by CVE is:

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.

The weakness was shared by Erez Kalman. The identification of this vulnerability is CVE-2026-30796 since 03/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1040 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cleartext transmission
CWE: CWE-319 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/05/2026 Advisory disclosed
03/05/2026 +0 days CVE reserved
03/05/2026 +0 days VulDB entry created
03/25/2026 +20 days VulDB entry last update

Sourcesinfo

Researcher: Erez Kalman
Status: Not defined

CVE: CVE-2026-30796 (🔒)
GCVE (CVE): GCVE-0-2026-30796
GCVE (VulDB): GCVE-100-349199

Entryinfo

Created: 03/05/2026 17:48
Updated: 03/25/2026 16:42
Changes: 03/05/2026 17:48 (65), 03/25/2026 16:42 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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