CVE-2026-57455

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. 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, nvd
Trending — Patch released 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

A fix is available — apply it.

Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0698.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 26, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Out-of-bounds Write in SOFO Soundfolding in Vim < 9.2.0698 · Advisory · vim/vim · GitHub

https://github.com/vim/vim/security/advisories/GHSA-q8mh-6qm3-25g4
github_commit

commit 497f931f8533 (vim/vim)

Fix landed in vim/vim commit 497f931f8533 — awaiting tagged release

https://github.com/vim/vim/commit/497f931f85339d175d7f69588dd249e8ccfed41b

Vendor Advisories for CVE-2026-57455(11)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuxxd (2:9.1.0967-1ubuntu6.8) @ questing2026-09-18ubuntu
redhatvim-2:7.4.629-8.el7_9.22026-09-17redhat
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatrhcos-4.22.9.8.202608130832-02026-08-18redhat
redhatvim-2:9.1.083-5.el10_0.42026-08-17redhat
redhatrhui5/rhua-rhel9:17865335292026-08-12redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17864336562026-08-11redhat
redhatvim-2:8.0.1763-31.el8_102026-07-31redhat
redhatvim-2:9.1.083-9.el10_2.122026-07-31redhat
redhatvim-2:8.2.2637-26.el9_8.132026-07-29redhat
redhatvim-main-9.2.725-1.hum12026-06-26redhat

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.

Affected Packages

(5 across 5 ecosystems)
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
vim—9.2.0854-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
vim2:8.2.2434-3 ... 2:9.2.0858-1 (63 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
vim2:9.0.1378-2 ... 2:9.2.0858-1 (45 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
vim2:9.1.1230-2 ... 2:9.2.0858-1 (19 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
vim2:9.1.1230-2 ... 2:9.2.0524-1 (17 versions)2:9.2.0782-1—

Weakness Classification(1)

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 13× in last 7d / 46× 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 207 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-57455?
CVE-2026-57455 is a high vulnerability published on June 25, 2026. Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spellsoundfoldsofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound…
When was CVE-2026-57455 disclosed?
CVE-2026-57455 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57455 actively exploited?
CVE-2026-57455 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-2026-57455?
CVE-2026-57455 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-57455?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57455, 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

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