Skip to main content

svxreflector CVE-2026-73146

MEDIUM
2026-08-13 vendor:ubuntu
Share

Severity by source

vuln.today AI
8.1 HIGH

Network-reachable service (AV:N), but reentrancy timing dependency raises complexity (AC:H); PR:N assumed as client connections may not require credentials, pending confirmation.

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

Lifecycle Timeline

1
Analysis Generated
Aug 14, 2026 - 20:10 vuln.today

DescriptionCVE.org

[GHSA-r2gm-p682-3mpm: svxreflector: use-after-free via reentrant client deletion]

AnalysisAI

Use-after-free via reentrant client deletion in svxreflector (SvxLink) allows a network-connected client to trigger memory corruption by initiating a disconnect sequence during an already-in-progress client deletion callback. The affected component is the SvxLink conference reflector server used in amateur radio linking systems. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Connect to svxreflector network port
Delivery
Trigger client deletion callback
Exploit
Initiate reentrant deletion via concurrent event
Execution
Dereference freed client object
Impact
Crash process or corrupt memory for code execution

Vulnerability AssessmentAI

Exploitation The vulnerability requires a network-accessible svxreflector instance - the service must be reachable from the attacker. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Risk signals for this vulnerability are sparse: no CVSS vector, no EPSS score, no KEV status, and no POC availability data were provided in the input, making quantitative risk comparison impossible. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote client connects to the svxreflector network service and sends a sequence of requests or disconnect events timed to trigger simultaneous deletion callbacks on the same client object. The resulting use-after-free corrupts process memory, causing a crash or, if memory layout is favorable to the attacker, potentially redirecting execution flow. …
Remediation No exact patch version was provided in the input data, so a specific upgrade target cannot be confirmed. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

Vendor StatusVendor

Share

CVE-2026-73146 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy