An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31.
Priority MEDIUM 46CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-120 and the CVSS impact.
Summary
An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. Heap-based buffer overflow in the addMultirowsForm function in w3m allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted HTML page.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03342 88th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9428
- 2026-10-03 Alias added: GHSA-hjmx-gcwh-p66v
References
More Tats W3m vulnerabilities
- TI-2016-07694 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
- TI-2016-07701 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
- TI-2016-07697 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
- TI-2016-07696 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
- TI-2016-07695 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
- TI-2016-07698 An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31. CVSS 3.0HIGH 8.8
Sources
- CVE-2016-9428 · CVE Program
- CVE-2016-9428 · NVD
- FIRST EPSS
- GHSA-hjmx-gcwh-p66v · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9428 · Red Hat security data · CC BY 4.0
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