CVE-2026-34708

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM 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
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 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 Stack-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(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 28, 2026

References (1)

Vendor Advisories for CVE-2026-34708(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 9× in last 7d / 52× 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 258 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-34708?
CVE-2026-34708 is a high vulnerability published on June 9, 2026. InCopy versions 21.3, 20.5.3 and earlier are affected by a Stack-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-2026-34708 disclosed?
CVE-2026-34708 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34708 actively exploited?
CVE-2026-34708 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 92.8% of all scored CVEs.
What is the CVSS score of CVE-2026-34708?
CVE-2026-34708 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-34708?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34708, 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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