Page generated: 10 Nov 2026, 16:18 UTC
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CVE-2026-72529

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 execute an arbitrary script by calling an undocumented function.

CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.6/10
REALITY · THREAT PRIORITY
8.5/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 9.8: +1.47
  • Fresh EPSS: 1.46%: +0.01

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 10 documents and public datasets.

Hype components

Headline sample (25%)
10/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL6/100

Sources and documents

Security Boulevard
Press · 07 Oct 2026, 07:00 · Rethinking Vulnerability Management: “If It’s Not in the Scanner, It Didn’t Happen” Needs to Go - Security Boulevard
Recorded Future
Press · 08 Sep 2026, 07:00 · Panorama des CVE d'août 2026​​ - Recorded Future
Recorded Future
Press · 08 Sep 2026, 07:00 · August 2026 CVE Landscape - Recorded Future
Cybernews
Press · 22 Aug 2026, 07:00 · Using Russia’s Zoom alternative TrueConf? Patch it now, CISA warns - Cybernews
Security Affairs
Press · 21 Aug 2026, 07:00 · U.S. CISA adds TrueConf Server flaws to its Known Exploited Vulnerabilities catalog - Security Affairs
See all 10 source documents
The Register
Press · 21 Aug 2026, 07:00 · Homeland security cybercops say patch TrueConf (Russia's Zoom) if you're using it - The Register
SecurityWeek
Press · 21 Aug 2026, 07:00 · CISA Urges Immediate Patching of Exploited TrueConf Vulnerabilities - SecurityWeek
SC Media
Press · 21 Aug 2026, 07:00 · TrueConf flaws enabling attacks on meeting participants added to KEV catalog - SC Media
BleepingComputer
Press · 21 Aug 2026, 07:00 · CISA orders feds to patch actively exploited TrueConf Server flaws - BleepingComputer
The Hacker News
Press · 10 Aug 2026, 07:00 · TrueConf Server Flaws Exploited to Replace Client Installers with PhantomCore - The Hacker News

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

024681002 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.0Reality 8.502 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.3Reality 8.502 Nov 2026 · OBSERVED EXPLOITATION + LOWER RECENT ATTENTIONHype 0.6Reality 8.5Nov 2Nov 2Nov 2

━ Hype Score (Perceived)  ━ Reality threat priority. Definition changes are not new attacks.

Public exploit evidence

0

Public exploit entries / repo candidates

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 9.8; EPSS 1.5%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 14:00:23.054862+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
10 Aug 2026, 07:00
Published
19 Aug 2026, 16:55
Added to the CISA KEV catalog
20 Aug 2026, 00:00
Latest press mention
07 Oct 2026, 07:00
Score calculated
05 Nov 2026, 14:00