October 24, 2026

CVE Watchtower

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CVE-2026-72530NVD

Vulnerability Summary

A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.
Severity Level
CRITICAL(9.0)
Published Date
Aug 19, 2026
Last Modified
Aug 20, 2026
Exploitation Status
ACTIVE
EPSS Score (30-Day)
1.83%Probability
Root Weakness (CWE)
CWE-94: Code Injection ↗
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.
CVSS v4.0 Base Metrics — Score 9.5 (CRITICAL)
Attack VectorNetwork
Attack ComplexityHigh
Attack RequirementsPresent
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)High
Integrity (Subsequent System)High
Availability (Subsequent System)High
CVSS v3.1 Base Metrics — Score 9.0 (CRITICAL)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • TrueConf TrueConf Server >= * and < 5.3
  • TrueConf TrueConf Server >= 5.3 and < 5.3.9
  • TrueConf TrueConf Server >= 5.4 and < 5.4.9
  • TrueConf TrueConf Server >= 5.5 and < 5.5.5
Patched Versions
  • TrueConf TrueConf Server 5.3
  • TrueConf TrueConf Server 5.3.9
  • TrueConf TrueConf Server 5.4.9
  • TrueConf TrueConf Server 5.5.5
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References