CVE-2026-6047

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed past the end of the allocation. In fixed versions the type is checked before the write.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 15, 2026

Last Modified

June 15, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
No patch confirmed yet.
generic

Security advisories — LibreOffice

https://www.libreoffice.org/about-us/security/advisories/cve-2026-6047

Vendor Advisories for CVE-2026-6047(1)

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

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libreoffice1:7.0.4-4 ... 4:7.6.4~rc1-1~bpo12+1 (402 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libreoffice4:25.2.3-2 ... 4:26.2.3.2-2~bpo13+1 (51 versions)4:26.2.3.2-2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 71× 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 154 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-6047?
CVE-2026-6047 is a medium vulnerability published on June 15, 2026. LibreOffice can import documents in the OOXML format (DOCX). A heap buffer overflow existed when replaying deferred parser events for a text box element. A handler object was assumed to be of one type and written to at that type's field layout, but it could be a smaller object, so the write landed…
When was CVE-2026-6047 disclosed?
CVE-2026-6047 was first published in the National Vulnerability Database on June 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-6047 actively exploited?
CVE-2026-6047 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 98.0% of all scored CVEs.
What is the CVSS score of CVE-2026-6047?
CVE-2026-6047 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-6047?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6047, 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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