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Luu, T.J.

🔥 This vulnerability is being actively exploited in the wild (CISA Known Exploited Vulnerabilities catalog)

CVE-2026-3502: TrueConf Client Download of Code Without Integrity Check Vulnerability

infovulnerability🔥 Actively Exploited

security

Source: CISA Known Exploited VulnerabilitiesApril 1, 2026CVE-2026-3502

Summary

TrueConf Client has a vulnerability where it downloads software updates without checking if they're genuine or tampered with (integrity check, a verification that data hasn't been changed). An attacker who can intercept the update process could inject malicious code that would run with the same permissions as the person updating the software, potentially giving them complete control of the system. This vulnerability is currently being exploited by real attackers.

Solution / Mitigation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability Details

EPSS (30-day exploit probability)

EPSS: 0.0%

Patch Available

Yes

Exploit Maturity

🔥 Actively Exploited

Disclosure Date

April 1, 2026

Classification

Attack SophisticationModerate

Taxonomy References

CWE (Weakness Type)

CWE-494

Monthly digest — independent AI security research

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-3502

First tracked: April 2, 2026 at 08:00 PM

Classified by LLM (prompt v3) · confidence: 95%