Security readout for executives and security teams
Plain-English summary
CVE-2019-25485 affects R 3.4.4 on Windows x64. A local attacker can abuse the GUI Preferences language menu field to crash or potentially execute code with the privileges of the R application. The bundle includes public exploit-reference evidence, but it does not support active exploitation in the wild.
Executive priority
Treat as a targeted endpoint remediation item rather than an emergency internet-facing incident. Prioritize systems with shared access, higher user privileges, or sensitive workloads.
Technical view
The vulnerability is described as a CWE-787 buffer overflow in the R 3.4.4 Windows x64 GUI Preferences "Language for menus" field. The supplied description states that crafted input can trigger a structured exception handler chain pivot and bypass DEP and ASLR, leading to arbitrary shellcode execution in the context of the application. CVSS v4.0 is 6.9 with local attack vector and high availability impact.
Likely exposure
Exposure is likely limited to Windows x64 systems with R 3.4.4 installed, especially where local users can access the R GUI preferences. Network-facing exposure is not indicated by the source bundle.
Exploitation context
The source bundle references ExploitDB-47122 and a VulnCheck advisory, so public exploit information appears to exist. The bundle marks KEV as false and provides no source evidence of active exploitation; do not treat this as known exploited based on the supplied evidence.
Researcher notes
The CVE identifier is from the 2019 namespace, but the supplied publication date is 2026-03-11. The evidence set supports affected product/version, public exploit-reference availability, and local code-execution impact, but not active exploitation or a confirmed vendor fix.
Mitigation direction
- Inventory Windows x64 endpoints for R 3.4.4 installations.
- Upgrade or remove R 3.4.4 where possible; the bundle does not include patch evidence, so check R-Project/vendor guidance for the correct fixed version or supported remediation path.
- Limit local access to systems running the affected version and avoid running R with elevated privileges.
- Use endpoint controls such as application allowlisting and monitoring to reduce the impact of local code execution attempts.
Validation and detection
- Confirm whether R 3.4.4 is installed on Windows x64 hosts.
- Verify whether the R GUI is present and accessible to local users.
- Check vendor or R-Project release guidance for remediation confirmation because the bundle does not provide a fixed-version statement.
- After remediation, re-inventory affected endpoints to confirm R 3.4.4 is removed or replaced.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2019-25485 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-47122CVE reference · exploit
- VulnCheck Advisory: R 3.4.4 Windows x64 Buffer Overflow SEH DEP ASLR BypassCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.