CVE-2026-73108

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Source
https://cve.org/CVERecord?id=CVE-2026-73108
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73108.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-73108
Published
2026-08-26T13:00:29.283Z
Modified
2026-08-30T03:30:31.482033481Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
RustDesk < 1.4.7 Uncontrolled Memory Allocation DoS via BytesCodec
Details

RustDesk versions before 1.4.7 contain an uncontrolled speculative memory allocation vulnerability in BytesCodec. Before authentication, the decoder trusts the payload length encoded in a four-byte frame header and reserves that amount before receiving the payload. A crafted header can request up to 1,073,741,823 bytes of capacity, allowing unauthenticated attackers to use concurrent TCP connections to cause memory exhaustion and denial of service. The fix caps header-triggered speculative preallocation at 256 KiB.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73108.json",
    "cwe_ids": [
        "CWE-770"
    ],
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/rustdesk/hbb_common

Affected ranges

Type
GIT
Repo
https://github.com/rustdesk/hbb_common
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
547da54b4ee58eed47163fbd47edb4639e3d88de
Database specific
Show details 
{
    "source": "REFERENCES"
}
Type
GIT
Repo
https://github.com/rustdesk/rustdesk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0c86d4616298f09435f6236599b300964aa61460
Fixed
518296f2570d107ad416f29ade5fcce3177f4115
Database specific
Show details 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.4.7"
        }
    ]
}

Affected versions

1.*
1.1.3
1.1.8
1.1.9
1.2.0
1.2.1
1.2.2
1.2.3
1.2.3-1
1.2.3-2
1.2.4
1.2.5
1.2.6
1.2.7
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
1.3.7
1.3.8
1.3.9
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
Other
dirver
driver
fdroid-version
nightly

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73108.json"