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TrueConf

TrueConf Client Download of Code Without Integrity Check Vulnerability

CVE-2026-3502

What this means

This is rated high severity (7.8 out of 10). It is on the known-exploited catalogue, which means attacks using it have already been seen. Ask IT whether Trueconf Trueconf is in your estate, and treat that as the priority.

Full vendor description

TrueConf Client downloads application update code and applies it without performing verification. An attacker who is able to influence the update delivery path can substitute a tampered update payload. If the payload is executed or installed by the updater, this may result in arbitrary code execution in the context of the updating process or user.

Scoring and exploitation

7.8/ 10
CVSS 3.1 base scoreHigh

Exploitable from the same local network with an administrator-level account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality and integrity; low on availability, and it can reach beyond the vulnerable system.

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

Exploitability

Longer bar: easier to attack

Attack vectorAdjacentAV:A
Attack complexityLowAC:L
Privileges requiredHighPR:H
User interactionRequiredUI:R
ScopeChangedS:C

Impact

Longer bar: more harm

ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityLowA:L
~5.8% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
Exploited in the wild
Yes — confirmed exploitation (US CISA )
Not reported
Listed product
TrueConf Client

Weaknesses

CWE-494

Affected products ()

  • Trueconf Trueconf
Show the raw CPE strings (1)
  • cpe:2.3:a:trueconf:trueconf:*:*:*:*:*:windows:*:*

References

3 links from the CVE record, grouped by site.

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