CVE-2026-72529

Q: How do I fix CVE-2026-72529?

Upgrade trueconf server to 5.3.9.10013 or later.

Q: Is CVE-2026-72529 being actively exploited?

Yes. CVE-2026-72529 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-08-23. Treat it as a priority whatever its CVSS score says.

Q: How severe is CVE-2026-72529?

CVE-2026-72529 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-72529 affect?

Published advisories record a fix for trueconf server (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALCISA KEV

9.8

CVSS v3

NVD

Description

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.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

trueconf serverNVD

Affected:< 5.3.9.10013Fixed in:5.3.9.10013CVE-2026-72529derived from NVD

Affected:>= 5.4.0.12700, < 5.4.9.10019Fixed in:5.4.9.10019CVE-2026-72529derived from NVD

Affected:< 5.3.9.10015Fixed in:5.3.9.10015CVE-2026-72529derived from NVD

Affected:>= 5.4.0.12689, < 5.4.9.10072Fixed in:5.4.9.10072CVE-2026-72529derived from NVD

Affected:>= 5.5.0.13826, < 5.5.5.10010Fixed in:5.5.5.10010CVE-2026-72529derived from NVD

Affected:>= 5.5.0.13828, < 5.5.5.10009Fixed in:5.5.5.10009CVE-2026-72529derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.78%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-08-23

References

Exploit1

securelist.com

Third-Party Advisory1

ics-cert.kaspersky.com

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-3248	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

Common questions

How do I fix CVE-2026-72529?

Upgrade trueconf server to 5.3.9.10013 or later.

Is CVE-2026-72529 being actively exploited?

Yes. CVE-2026-72529 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-08-23. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2026-72529?

CVE-2026-72529 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-72529 affect?

Published advisories record a fix for trueconf server (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-72529

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-21.