CVE-2026-45130

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 84% 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, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
16.0%
KEV
Not listed

Published

May 8, 2026

Last Modified

June 9, 2026

Advisory Details (4)

Auto-updated May 14, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

oss-security - Re: [vim-security] Heap Buffer Overflow in spell file loading affects Vim < 9.2.0450

http://www.openwall.com/lists/oss-security/2026/05/14/3
github Patch Available🟡 PoC Available

Heap Buffer Overflow in spell file loading affects Vim < 9.2.0450 · Advisory · vim/vim · GitHub

https://github.com/vim/vim/security/advisories/GHSA-q4jv-r9gj-6cwv
generic

Release v9.2.0450 · vim/vim · GitHub

https://github.com/vim/vim/releases/tag/v9.2.0450
generic

patch 9.2.0450: [security]: heap buffer overflow in spellfile.c read_… · vim/vim@9299332 · GitHub

https://github.com/vim/vim/commit/92993329178cb1f72d700fff45ca86e1c2d369f8

Vendor Advisories for CVE-2026-45130(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuxxd (2:9.1.0016-1ubuntu7.14) @ noble2026-06-28ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 40× 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 101 total refreshes for this CVE.

  1. 2026-07-13 22:30 UTCEPSS rescore
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-12 05:46 UTCEPSS rescore
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-09 19:10 UTCEPSS rescore
  6. 2026-07-08 15:16 UTCEPSS rescore
  7. 2026-07-07 13:46 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-01 15:07 UTCEPSS rescore
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-28 03:52 UTCEG score recompute
  20. 2026-06-28 03:52 UTCVendor advisory
  21. 2026-06-27 03:08 UTCEPSS rescore
  22. 2026-06-26 21:14 UTCEG score recompute
  23. 2026-06-26 21:14 UTCVendor advisory
  24. 2026-06-25 13:49 UTCEPSS rescore
  25. 2026-06-24 14:05 UTCEPSS rescore
Show 75 more
  1. 2026-06-23 21:33 UTCEPSS rescore
  2. 2026-06-22 14:25 UTCEPSS rescore
  3. 2026-06-22 14:25 UTCEPSS rescore
  4. 2026-06-21 14:56 UTCEPSS rescore
  5. 2026-06-21 14:56 UTCEPSS rescore
  6. 2026-06-21 01:59 UTCEPSS rescore
  7. 2026-06-19 19:25 UTCEPSS rescore
  8. 2026-06-18 17:52 UTCEPSS rescore
  9. 2026-06-18 17:52 UTCEPSS rescore
  10. 2026-06-16 17:52 UTCEPSS rescore
  11. 2026-06-16 07:55 UTCEG score recompute
  12. 2026-06-16 07:55 UTCVendor advisory
  13. 2026-06-15 17:49 UTCEPSS rescore
  14. 2026-06-15 01:21 UTCEG score recompute
  15. 2026-06-15 01:21 UTCVendor advisory
  16. 2026-06-14 02:24 UTCEG score recompute
  17. 2026-06-14 02:24 UTCVendor advisory
  18. 2026-06-12 23:12 UTCEPSS rescore
  19. 2026-06-12 23:12 UTCEPSS rescore
  20. 2026-06-12 18:54 UTCEG score recompute
  21. 2026-06-12 18:54 UTCVendor advisory
  22. 2026-06-11 20:09 UTCEG score recompute
  23. 2026-06-11 20:09 UTCVendor advisory
  24. 2026-06-11 14:00 UTCEPSS rescore
  25. 2026-06-10 22:18 UTCEPSS rescore
  26. 2026-06-10 21:25 UTCEG score recompute
  27. 2026-06-10 21:25 UTCVendor advisory
  28. 2026-06-10 13:22 UTCEPSS rescore
  29. 2026-06-10 13:22 UTCEPSS rescore
  30. 2026-06-09 22:42 UTCEG score recompute▼ 1.10
  31. 2026-06-09 22:42 UTCVendor advisory
  32. 2026-06-09 19:17 UTCNVD updateCVSS v3 → 5.5
  33. 2026-06-08 21:47 UTCEG score recompute
  34. 2026-06-08 21:47 UTCVendor advisory
  35. 2026-06-08 14:17 UTCEPSS rescore
  36. 2026-06-08 14:17 UTCEPSS rescore
  37. 2026-06-07 22:39 UTCEG score recompute
  38. 2026-06-07 22:39 UTCVendor advisory
  39. 2026-06-06 23:55 UTCEG score recompute
  40. 2026-06-06 23:55 UTCVendor advisory
  41. 2026-06-06 13:47 UTCEPSS rescore
  42. 2026-06-06 13:47 UTCEPSS rescore
  43. 2026-06-06 01:11 UTCEG score recompute
  44. 2026-06-06 01:11 UTCVendor advisory
  45. 2026-06-05 22:47 UTCEPSS rescore
  46. 2026-06-05 06:10 UTCEPSS rescore
  47. 2026-06-05 06:10 UTCEPSS rescore
  48. 2026-06-05 02:28 UTCEG score recompute
  49. 2026-06-05 02:28 UTCVendor advisory
  50. 2026-06-04 13:12 UTCEPSS rescore
  51. 2026-06-04 13:12 UTCEPSS rescore
  52. 2026-06-04 03:44 UTCEG score recompute
  53. 2026-06-04 03:44 UTCVendor advisory
  54. 2026-06-03 05:00 UTCEG score recompute
  55. 2026-06-03 05:00 UTCVendor advisory
  56. 2026-06-02 20:13 UTCEPSS rescore
  57. 2026-06-02 06:16 UTCEG score recompute
  58. 2026-06-02 06:16 UTCVendor advisory
  59. 2026-06-01 13:52 UTCEPSS rescore
  60. 2026-06-01 13:52 UTCEPSS rescore
  61. 2026-06-01 07:30 UTCEG score recompute
  62. 2026-06-01 07:30 UTCVendor advisory
  63. 2026-05-31 00:16 UTCEPSS rescore
  64. 2026-05-31 00:16 UTCEPSS rescore
  65. 2026-05-29 13:44 UTCEPSS rescore
  66. 2026-05-29 13:44 UTCEPSS rescore
  67. 2026-05-28 13:44 UTCEPSS rescore
  68. 2026-05-28 13:44 UTCEPSS rescore
  69. 2026-05-27 13:40 UTCEPSS rescore
  70. 2026-05-27 13:40 UTCEPSS rescore
  71. 2026-05-26 13:44 UTCEPSS rescore
  72. 2026-05-23 00:07 UTCEG score recompute
  73. 2026-05-21 22:43 UTCEPSS rescore
  74. 2026-05-20 13:29 UTCEG score recompute
  75. 2026-05-20 13:29 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-45130?
CVE-2026-45130 is a medium vulnerability published on May 8, 2026. Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a…
When was CVE-2026-45130 disclosed?
CVE-2026-45130 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45130 actively exploited?
CVE-2026-45130 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45130?
CVE-2026-45130 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-45130?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45130, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-45130

Explore →

Is Your Infrastructure Affected by CVE-2026-45130?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs