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EchoLink Proxy CVE-2026-73152

MEDIUM
2026-08-13 vendor:ubuntu
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vuln.today AI
7.0 HIGH

Network-reachable proxy raises AV:N; AC:H because exploiting integer truncation to controlled memory corruption requires precise conditions; impact weighted toward availability with partial confidentiality/integrity.

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
4.0 AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Red Hat
HIGH
qualitative

Lifecycle Timeline

1
Analysis Generated
Aug 14, 2026 - 20:09 vuln.today

DescriptionCVE.org

[GHSA-4g8q-rgxf-fmgf: EchoLink proxy: integer truncation in message length]

AnalysisAI

Integer truncation of a message length field in the EchoLink proxy component may allow an attacker to trigger memory-safety issues by supplying a crafted message whose length, when truncated to a narrower integer type, produces an incorrect boundary calculation. The affected software is EchoLink, a VoIP system used by amateur radio operators to relay audio over the internet via proxy nodes. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Reach exposed EchoLink proxy port
Delivery
Send crafted message with oversized length
Exploit
Integer truncation under-allocates buffer
Execution
Overflow adjacent memory
Impact
Crash or code execution

Vulnerability AssessmentAI

Exploitation No CVSS vector was provided, so authentication requirements cannot be confirmed from available data. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Risk assessment is significantly constrained by the absence of CVSS score, vector, CWE, EPSS score, KEV status, and patch version data - all critical signals are missing. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with network access to an exposed EchoLink proxy port sends a specially crafted protocol message with a length value whose upper bits, when truncated by the proxy's integer handling, yield a value smaller than the actual data payload. The proxy allocates an undersized buffer and copies the full payload into it, potentially overwriting adjacent memory. …
Remediation No exact fix version was provided in the available data. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-73152 vulnerability details – vuln.today

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