Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in build_stl_str_hl() when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.
CVE-2026-28422
LOWPre-NVD 2.22.2Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This low-severity CVE scores 2.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
2.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 2.2Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.2
- EG Score
- 2.2(low)
- EG Risk
- 14(Track)EG Risk 14/100SSVC: 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 computedSeverity22% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 4%
- KEV
- Not listed
Published
February 27, 2026
Last Modified
June 17, 2026
References (4)
- security-advisories@githubhttps://github.com/vim/vim/commit/4e5b9e31cb7484ad156f
- security-advisories@githubhttps://github.com/vim/vim/releases/tag/v9.2.0078
- security-advisories@githubhttps://github.com/vim/vim/security/advisories/GHSA-gmqx-prf2-8mwf
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/02/27/11
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× 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.
- 2026-07-27 14:02 UTCEG score recompute
- 2026-07-27 14:02 UTCVendor advisory
- 2026-07-27 13:55 UTCOSV refresh
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Frequently asked(5)
What is CVE-2026-28422?
CVE-2026-28422 is a low vulnerability published on February 27, 2026. Vim is an open source, command line text editor. Prior to version 9.2.0078, a stack-buffer-overflow occurs in buildstlstr_hl() when rendering a statusline with a multi-byte fill character on a very wide terminal. Version 9.2.0078 patches the issue.
When was CVE-2026-28422 disclosed?
CVE-2026-28422 was first published in the National Vulnerability Database on February 27, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28422 actively exploited?
CVE-2026-28422 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 96.1% of all scored CVEs.
What is the CVSS score of CVE-2026-28422?
CVE-2026-28422 has a CVSS v3 base score of 2.2 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-28422?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28422, 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-2026-28422
Is Your Infrastructure Affected by CVE-2026-28422?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.