Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.
CVE-2026-25749
“—” beside the score: it is equal to the CVSS score beside it.
This medium-severity CVE scores 6.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (18th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-6930 (ENISA EUVD)Source: ENISA EUVD
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.6
- EG Score
- 6.6MEDIUMmedium confidence
- EG Risk
- 30EG Risk 30/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity66% × 45%Impact severity (EG Severity): CVSS 6.6 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.2% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.3%
- EPSS %ILE
- 18th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.6): severity, escalated by confirmed exploitation. This CVE's 6.6 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.6 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.3% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
February 6, 2026
Last Modified
June 17, 2026
Advisory Details (2)
Auto-updated Jun 14, 2026buffer overflow in helpfile option handling affects Vim < 9.1.2132 · Advisory · vim/vim · GitHub
https://github.com/vim/vim/security/advisories/GHSA-5w93-4g67-mm43commit 0714b15940b2 (vim/vim)
Fix landed in vim/vim commit 0714b15940b2 — awaiting tagged release
https://github.com/vim/vim/commit/0714b15940b245108e6e9d7aa2260dd849a26fa9Vendor Advisories for CVE-2026-25749(20)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:25096Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.2.2 (cuda)
- RHSA-2026:17596Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.17.54 bug fix and security update
- RHSA-2026:14773Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.15.64 bug fix and security update
- RHSA-2026:15087Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.14.65 bug fix and security update
- RHSA-2026:16174Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.3.3 (Spyre)
- RHSA-2026:16009Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server 3.3.3 (ROCm)
- RHSA-2026:16008Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.3.3 (CUDA)
- RHSA-2026:12274Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.12.88 bug fix and security update
- +12 more
Patch Availability(29)
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)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vim | — |
| — |
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vim | 2:8.2.2434-3 ... 2:9.2.0858-1 (63 versions) |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vim | 2:9.0.1378-2 ... 2:9.2.0858-1 (45 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vim | 2:9.1.1230-2 ... 2:9.2.0858-1 (19 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| vim | 2:9.1.1230-2 ... 2:9.1.2103-1 (7 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(8)
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.
- Red HatRHSA-2026:4442MODERATE2026-02-06
RHSA-2026:4442 — Moderate
- Red HatRHSA-2026:4715MODERATE2026-02-06
RHSA-2026:4715 — Moderate
- Red HatRHSA-2026:5602MODERATE2026-02-06
RHSA-2026:5602 — Moderate
- Red HatRHSA-2026:6502MODERATE2026-02-06
RHSA-2026:6502 — Moderate
- Red HatRHSA-2026:6539MODERATE2026-02-06
RHSA-2026:6539 — Moderate
- Red HatRHSA-2026:6540MODERATE2026-02-06
RHSA-2026:6540 — Moderate
- Red HatRHSA-2026:6617MODERATE2026-02-06
RHSA-2026:6617 — Moderate
- Red HatRHSA-2026:6619MODERATE2026-02-06
RHSA-2026:6619 — Moderate
Data Freshness Timeline
(refreshed 8× in last 7d / 39× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 99 of 210 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 111 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-31 01:25 UTCOSV refresh
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
- 2026-10-25 14:39 UTCEG score recompute
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-10-23 04:29 UTCEG score recompute
- 2026-10-23 04:29 UTCVendor advisory
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-18 03:52 UTCEG score recompute
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Show 74 moreShow fewer
- 2026-10-12 16:18 UTCEG score recompute
- 2026-10-11 20:01 UTCEG score recompute
- 2026-10-11 17:14 UTCEG score recompute
- 2026-10-11 14:45 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-08 16:54 UTCOSV refresh
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
- 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-18 23:12 UTCOSV refresh
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 13th percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-31 02:21 UTCOSV refresh
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-14 10:57 UTCEG score recompute
- 2026-08-14 10:57 UTCVendor advisory
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-13 03:15 UTCEG score recompute
- 2026-08-13 03:15 UTCVendor advisory
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-09 15:36 UTCEG score recompute
- 2026-08-09 15:36 UTCVendor advisory
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-07 22:35 UTCEG score recompute
- 2026-08-07 22:35 UTCVendor advisory
- 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-06 04:14 UTCEG score recompute
- 2026-08-06 04:14 UTCVendor advisory
- 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-02 21:13 UTCEG score recompute
- 2026-08-02 21:13 UTCVendor advisory
- 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownAlpine:v3.23:vim
Same vendor
10 shownredhat:RHSA-2026:10065 · redhat:RHSA-2026:10097
Frequently asked(5)
What is CVE-2026-25749?
When was the CVE record for CVE-2026-25749 published?
Is CVE-2026-25749 actively exploited?
What is the CVSS score of CVE-2026-25749?
How do I remediate CVE-2026-25749?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-25749
Is Your Infrastructure Affected by CVE-2026-25749?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.