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TI-2019-15538 Aliases CVE-2019-25485GHSA-48cq-3q6q-vxm7

R 3.4.4 Windows x64 Buffer Overflow SEH DEP ASLR Bypass

Priority MEDIUM 64CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

R 3.4.4 on Windows x64 contains a buffer overflow vulnerability in the GUI Preferences language menu field that allows local attackers to bypass DEP and ASLR protections. Attackers can inject a crafted payload through the Language for menus preference to trigger a structured exception handler chain pivot and execute arbitrary shellcode with application privileges.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00138 3rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
R-ProjectR3.4.4—No fix listedCNA
  • R VendorR-Project Affected 3.4.4 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25485
  2. 2026-10-03 Alias added: GHSA-48cq-3q6q-vxm7

References

Exploit 1

  • TI-2024-18160 Deserialization of untrusted data in R-Project R CVSS 3.1HIGH 8.8
  • TI-2019-15747 R 3.4.4 Local Buffer Overflow Windows XP SP3 CVSS 4.0HIGH 8.6
  • TI-2019-15709 R i386 3.5.0 Local Buffer Overflow SEH CVSS 4.0HIGH 8.6
  • TI-2018-15483 RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass CVSS 4.0HIGH 8.6
  • TI-2020-16754 The R programming language’s default package manager CRAN is affected by a path traversal… CVSS 3.1CRITICAL 9.8
  • TI-2016-07171 Buffer overflow in R-Project R CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences