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Not in CISA KEV
HIGH severity

CVE-2026-93652

HIGH

CVE-2026-93652 is a high-severity (CVSS 7.5) CWE-190 vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

Integer overflow in µD3TN v0.15.0 TCPCLv3 handshake causes heap overflow, allowing remote attackers to reliably cause DoS

Published
Sep 18, 2026
Updated
Sep 18, 2026
Affected
Patched
Exploits
None indexed
Exploitation data as of Sep 18, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-93652.

Description

Integer overflow in µD3TN v0.15.0 TCPCLv3 handshake causes heap overflow, allowing remote attackers to reliably cause DoS

Detection & mitigation playbook

Vulnerability
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for the affected component, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of the affected component has shipped for CVE-2026-93652 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2026-93652 can be triaged on real exposure rather than presence alone.

Tailored to CVE-2026-93652. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Integer overflow in µD3TN v0.15.0 TCPCLv3 handshake causes heap overflow, allowing remote attackers to reliably cause DoS
O3 Security · Impact-Aware SCA

Is CVE-2026-93652 in your dependencies?

O3 Security finds CVE-2026-93652 across dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

CVE-2026-93652: High 7.5 severity | O3 Security