Buffer overflow in HCL Notes
Priority LOW 30CWE-120Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.
Why it matters now
EPSS 0.00318 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | HCL Notes | HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1 | — | No fix listed | CNA |
- HCL Notes Vendor— Affected HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1 Fixed in — No fix listed CNA
CPE configurations NVD · 39
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hcltech:notes:*:*:*:*:*:*:*:* | 9.0 – 9.0.1; 11.0 – 11.0.1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10:*:*:*:*:*:* | 9.0.1 fp10 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if1:*:*:*:*:*:* | 9.0.1 fp10if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if2:*:*:*:*:*:* | 9.0.1 fp10if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if3:*:*:*:*:*:* | 9.0.1 fp10if3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if4:*:*:*:*:*:* | 9.0.1 fp10if4 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if5:*:*:*:*:*:* | 9.0.1 fp10if5 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if6:*:*:*:*:*:* | 9.0.1 fp10if6 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp10if7:*:*:*:*:*:* | 9.0.1 fp10if7 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp1if1:*:*:*:*:*:* | 9.0.1 fp1if1 | Vulnerable | HCL Software |
- cpe:2.3:a:hcltech:notes:*:*:*:*:*:*:*:* Versions 9.0 – 9.0.1; 11.0 – 11.0.1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10:*:*:*:*:*:* Versions 9.0.1 fp10 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if1:*:*:*:*:*:* Versions 9.0.1 fp10if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if2:*:*:*:*:*:* Versions 9.0.1 fp10if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if3:*:*:*:*:*:* Versions 9.0.1 fp10if3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if4:*:*:*:*:*:* Versions 9.0.1 fp10if4 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if5:*:*:*:*:*:* Versions 9.0.1 fp10if5 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if6:*:*:*:*:*:* Versions 9.0.1 fp10if6 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp10if7:*:*:*:*:*:* Versions 9.0.1 fp10if7 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp1if1:*:*:*:*:*:* Versions 9.0.1 fp1if1 Vulnerable ·HCL Software
Show 29 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hcltech:notes:9.0.1:fp1if2:*:*:*:*:*:* | 9.0.1 fp1if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp2if1:*:*:*:*:*:* | 9.0.1 fp2if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp2if2:*:*:*:*:*:* | 9.0.1 fp2if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp2if3:*:*:*:*:*:* | 9.0.1 fp2if3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp2if4:*:*:*:*:*:* | 9.0.1 fp2if4 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp3if1:*:*:*:*:*:* | 9.0.1 fp3if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp3if2:*:*:*:*:*:* | 9.0.1 fp3if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp3if3:*:*:*:*:*:* | 9.0.1 fp3if3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp3if4:*:*:*:*:*:* | 9.0.1 fp3if4 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp4if1:*:*:*:*:*:* | 9.0.1 fp4if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp4if2:*:*:*:*:*:* | 9.0.1 fp4if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp5if1:*:*:*:*:*:* | 9.0.1 fp5if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp5if2:*:*:*:*:*:* | 9.0.1 fp5if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp5if3:*:*:*:*:*:* | 9.0.1 fp5if3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp7if1:*:*:*:*:*:* | 9.0.1 fp7if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp7if2:*:*:*:*:*:* | 9.0.1 fp7if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp8if1:*:*:*:*:*:* | 9.0.1 fp8if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp9if1:*:*:*:*:*:* | 9.0.1 fp9if1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:9.0.1:fp9if2:*:*:*:*:*:* | 9.0.1 fp9if2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.0:fp1:*:*:*:*:*:* | 10.0.0 fp1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.0:fp2:*:*:*:*:*:* | 10.0.0 fp2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.0:fp3:*:*:*:*:*:* | 10.0.0 fp3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.0:fp4:*:*:*:*:*:* | 10.0.0 fp4 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.0:fp5:*:*:*:*:*:* | 10.0.0 fp5 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.1:fp1:*:*:*:*:*:* | 10.0.1 fp1 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.1:fp2:*:*:*:*:*:* | 10.0.1 fp2 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.1:fp3:*:*:*:*:*:* | 10.0.1 fp3 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.1:fp4:*:*:*:*:*:* | 10.0.1 fp4 | Vulnerable | HCL Software |
| cpe:2.3:a:hcltech:notes:10.0.1:fp5:*:*:*:*:*:* | 10.0.1 fp5 | Vulnerable | HCL Software |
- cpe:2.3:a:hcltech:notes:9.0.1:fp1if2:*:*:*:*:*:* Versions 9.0.1 fp1if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp2if1:*:*:*:*:*:* Versions 9.0.1 fp2if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp2if2:*:*:*:*:*:* Versions 9.0.1 fp2if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp2if3:*:*:*:*:*:* Versions 9.0.1 fp2if3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp2if4:*:*:*:*:*:* Versions 9.0.1 fp2if4 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp3if1:*:*:*:*:*:* Versions 9.0.1 fp3if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp3if2:*:*:*:*:*:* Versions 9.0.1 fp3if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp3if3:*:*:*:*:*:* Versions 9.0.1 fp3if3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp3if4:*:*:*:*:*:* Versions 9.0.1 fp3if4 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp4if1:*:*:*:*:*:* Versions 9.0.1 fp4if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp4if2:*:*:*:*:*:* Versions 9.0.1 fp4if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp5if1:*:*:*:*:*:* Versions 9.0.1 fp5if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp5if2:*:*:*:*:*:* Versions 9.0.1 fp5if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp5if3:*:*:*:*:*:* Versions 9.0.1 fp5if3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp7if1:*:*:*:*:*:* Versions 9.0.1 fp7if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp7if2:*:*:*:*:*:* Versions 9.0.1 fp7if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp8if1:*:*:*:*:*:* Versions 9.0.1 fp8if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp9if1:*:*:*:*:*:* Versions 9.0.1 fp9if1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:9.0.1:fp9if2:*:*:*:*:*:* Versions 9.0.1 fp9if2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.0:fp1:*:*:*:*:*:* Versions 10.0.0 fp1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.0:fp2:*:*:*:*:*:* Versions 10.0.0 fp2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.0:fp3:*:*:*:*:*:* Versions 10.0.0 fp3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.0:fp4:*:*:*:*:*:* Versions 10.0.0 fp4 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.0:fp5:*:*:*:*:*:* Versions 10.0.0 fp5 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.1:fp1:*:*:*:*:*:* Versions 10.0.1 fp1 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.1:fp2:*:*:*:*:*:* Versions 10.0.1 fp2 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.1:fp3:*:*:*:*:*:* Versions 10.0.1 fp3 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.1:fp4:*:*:*:*:*:* Versions 10.0.1 fp4 Vulnerable ·HCL Software
- cpe:2.3:a:hcltech:notes:10.0.1:fp5:*:*:*:*:*:* Versions 10.0.1 fp5 Vulnerable ·HCL Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-4097
- 2026-10-03 Alias added: GHSA-f8fj-f7w2-x4xm
References
More HCL Software Notes vulnerabilities
- TI-2022-22044 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2022-22042 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2022-22040 Out-of-bounds write in HCL Software Notes CVSS 3.1CRITICAL 9.8
- TI-2020-11157 Out-of-bounds write in HCL Notes CVSS 3.1CRITICAL 9.8
- TI-2020-11139 Out-of-bounds write in HCL Notes CVSS 3.1CRITICAL 9.8
- TI-2020-11143 A vulnerability in the input parameter handling of HCL Notes v9 could potentially be… CVSS 3.1HIGH 8.8
Sources
- CVE-2020-4097 · CVE Program
- CVE-2020-4097 · NVD
- FIRST EPSS
- GHSA-f8fj-f7w2-x4xm · GitHub Advisory Database · CC BY 4.0
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