R i386 3.5.0 Local Buffer Overflow SEH
Published Apr 5, 2026
8.6
HIGHCVSS 4.0
EPSS 0.16%
Description
R i386 3.5.0 contains a local buffer overflow vulnerability in the GUI Preferences dialog that allows local attackers to trigger a structured exception handler (SEH) overwrite by supplying malicious input. Attackers can craft a payload string in the 'Language for menus and messages' field to overwrite SEH records and achieve code execution with calculator or arbitrary shellcode.
Affected products
-
- Version 3.5.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| R-Project | n/a | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Apr 6, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Apr–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.16% (0.00159) | 4.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.16% (0.00159) | 5.45th | v5 (v2026.06.15) |
| Apr 6, 2026 | 0.01% (0.00013) | 2.31th | v4 (v2025.03.14) |
References (4)
- https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe product
- https://www.exploit-db.com/exploits/46288 exploit
- https://www.r-project.org/ product
- https://www.vulncheck.com/advisories/r-i386-local-buffer-overflow-seh third-party-advisory
| Link | Providers | Tags |
|---|---|---|
| https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe | product | |
| https://www.exploit-db.com/exploits/46288 | exploit | |
| https://www.r-project.org/ | product | |
| https://www.vulncheck.com/advisories/r-i386-local-buffer-overflow-seh | third-party-advisory |
Change history (0)
No recorded changes yet.