CVE-2026-3502

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-04-02), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 6%CVSS: 7.8Exploit: cisa kev · ssvc activeExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
6%
EPSS %ILE
93%
KEV
⚠ Exploited

Published

March 30, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3502
generic

Operation TrueChaos: 0-Day Exploitation Against Southeast Asian Government Targets - Check Point Research

https://research.checkpoint.com/2026/operation-truechaos-0-day-exploitation-against-southeast-asian-government-targets/
generic

TrueConf 8.5 for desktops OS: new interface, AI, and advanced messenger — Video Conferencing Blog

https://trueconf.com/blog/update/trueconf-8-5

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 59× in last 7d / 242× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 878 total refreshes for this CVE.

  1. 2026-09-19 13:23 UTCGHSA enrichment
  2. 2026-09-19 09:07 UTCGHSA enrichment
  3. 2026-09-19 04:52 UTCGHSA enrichment
  4. 2026-09-19 00:36 UTCGHSA enrichment
  5. 2026-09-18 20:21 UTCEG score recompute
  6. 2026-09-18 20:21 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 19:20 UTCCISA KEV update
  10. 2026-09-18 16:05 UTCGHSA enrichment
  11. 2026-09-18 14:15 UTCCISA KEV update
  12. 2026-09-18 11:48 UTCGHSA enrichment
  13. 2026-09-18 07:32 UTCGHSA enrichment
  14. 2026-09-18 03:15 UTCGHSA enrichment
  15. 2026-09-17 22:59 UTCEG score recompute
  16. 2026-09-17 22:59 UTCGHSA enrichment
  17. 2026-09-17 19:30 UTCEPSS rescore
  18. 2026-09-17 18:42 UTCGHSA enrichment
  19. 2026-09-17 14:24 UTCGHSA enrichment
  20. 2026-09-17 10:08 UTCGHSA enrichment
  21. 2026-09-17 05:51 UTCGHSA enrichment
  22. 2026-09-17 01:34 UTCGHSA enrichment
  23. 2026-09-16 21:18 UTCGHSA enrichment
  24. 2026-09-16 17:02 UTCEG score recompute
  25. 2026-09-16 17:02 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 14:10 UTCCISA KEV update
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 12:46 UTCGHSA enrichment
  4. 2026-09-16 08:31 UTCEG score recompute
  5. 2026-09-16 08:30 UTCGHSA enrichment
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-16 04:11 UTCGHSA enrichment
  8. 2026-09-15 23:56 UTCGHSA enrichment
  9. 2026-09-15 19:40 UTCGHSA enrichment
  10. 2026-09-15 15:24 UTCGHSA enrichment
  11. 2026-09-15 11:07 UTCGHSA enrichment
  12. 2026-09-15 06:51 UTCEG score recompute
  13. 2026-09-15 06:51 UTCGHSA enrichment
  14. 2026-09-15 03:11 UTCEPSS rescore
  15. 2026-09-15 02:35 UTCGHSA enrichment
  16. 2026-09-14 22:19 UTCGHSA enrichment
  17. 2026-09-14 19:24 UTCCISA KEV update
  18. 2026-09-14 18:03 UTCGHSA enrichment
  19. 2026-09-14 13:47 UTCGHSA enrichment
  20. 2026-09-14 09:31 UTCGHSA enrichment
  21. 2026-09-14 05:16 UTCGHSA enrichment
  22. 2026-09-14 01:00 UTCGHSA enrichment
  23. 2026-09-13 20:44 UTCEG score recompute
  24. 2026-09-13 20:44 UTCGHSA enrichment
  25. 2026-09-13 16:47 UTCEPSS rescore
  26. 2026-09-13 16:28 UTCGHSA enrichment
  27. 2026-09-13 12:12 UTCGHSA enrichment
  28. 2026-09-13 07:56 UTCGHSA enrichment
  29. 2026-09-13 03:40 UTCGHSA enrichment
  30. 2026-09-12 23:25 UTCGHSA enrichment
  31. 2026-09-12 19:09 UTCEG score recompute
  32. 2026-09-12 19:09 UTCGHSA enrichment
  33. 2026-09-12 15:01 UTCEPSS rescore
  34. 2026-09-12 14:54 UTCGHSA enrichment
  35. 2026-09-12 10:38 UTCGHSA enrichment
  36. 2026-09-12 06:22 UTCGHSA enrichment
  37. 2026-09-12 02:06 UTCGHSA enrichment
  38. 2026-09-11 21:50 UTCGHSA enrichment
  39. 2026-09-11 18:49 UTCCISA KEV update
  40. 2026-09-11 17:35 UTCEG score recompute
  41. 2026-09-11 17:35 UTCGHSA enrichment
  42. 2026-09-11 14:53 UTCEPSS rescore
  43. 2026-09-11 13:19 UTCEG score recompute
  44. 2026-09-11 13:19 UTCGHSA enrichment
  45. 2026-09-11 09:37 UTCEPSS rescore
  46. 2026-09-11 09:03 UTCGHSA enrichment
  47. 2026-09-11 04:48 UTCGHSA enrichment
  48. 2026-09-11 00:32 UTCGHSA enrichment
  49. 2026-09-10 20:16 UTCGHSA enrichment
  50. 2026-09-10 19:28 UTCCISA KEV update
  51. 2026-09-10 16:00 UTCGHSA enrichment
  52. 2026-09-10 11:44 UTCEG score recompute
  53. 2026-09-10 11:44 UTCGHSA enrichment
  54. 2026-09-10 09:34 UTCEPSS rescore
  55. 2026-09-10 07:28 UTCGHSA enrichment
  56. 2026-09-10 03:11 UTCGHSA enrichment
  57. 2026-09-09 22:55 UTCGHSA enrichment
  58. 2026-09-09 19:08 UTCCISA KEV update
  59. 2026-09-09 18:39 UTCGHSA enrichment
  60. 2026-09-09 14:23 UTCGHSA enrichment
  61. 2026-09-09 10:07 UTCGHSA enrichment
  62. 2026-09-09 05:52 UTCGHSA enrichment
  63. 2026-09-09 01:37 UTCEG score recompute
  64. 2026-09-09 01:37 UTCGHSA enrichment
  65. 2026-09-08 22:00 UTCEPSS rescore
  66. 2026-09-08 21:21 UTCGHSA enrichment
  67. 2026-09-08 18:54 UTCCISA KEV update
  68. 2026-09-08 17:05 UTCGHSA enrichment
  69. 2026-09-08 12:47 UTCGHSA enrichment
  70. 2026-09-08 08:30 UTCGHSA enrichment
  71. 2026-09-08 04:15 UTCGHSA enrichment
  72. 2026-09-07 23:59 UTCGHSA enrichment
  73. 2026-09-07 19:44 UTCEG score recompute
  74. 2026-09-07 19:44 UTCGHSA enrichment
  75. 2026-09-07 16:01 UTCEPSS rescore

Frequently asked(6)

What is CVE-2026-3502?
CVE-2026-3502 is a critical vulnerability published on March 30, 2026. 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…
When was CVE-2026-3502 disclosed?
CVE-2026-3502 was first published in the National Vulnerability Database on March 30, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3502 actively exploited?
Yes. CISA added CVE-2026-3502 to the Known Exploited Vulnerabilities catalog on April 2, 2026, affecting TrueConf Client. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-3502?
CVE-2026-3502 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2026-3502?
CVE-2026-3502 affects TrueConf Client. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-3502?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3502, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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