CVE-2026-34707

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS v3
7.8
EG Score
7.8(high)
EPSS
7.5%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 10, 2026

References (1)

Vendor Advisories for CVE-2026-34707(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 144× 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 144 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-34707?
CVE-2026-34707 is a high vulnerability published on June 9, 2026. InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
When was CVE-2026-34707 disclosed?
CVE-2026-34707 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34707 actively exploited?
CVE-2026-34707 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34707?
CVE-2026-34707 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-34707?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34707, 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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