PatchSiren cyber security CVE debrief

CVE-2019-25695 r-project CVE debrief

CVE-2019-25695 is a local buffer overflow vulnerability in R 3.4.4 that allows attackers to execute arbitrary code by injecting malicious input into the GUI Preferences language field. The vulnerability has a CVSS score of 8.6 and is classified as HIGH severity. The issue was published on April 12, 2026, and last modified on June 30, 2026. The CVE record and NVD detail provide more information about the vulnerability. Additionally, various sources such as exploit-db and Vulncheck provide further details and advisories.

Vendor: r-project
Product: R
CVSS: HIGH 8.6
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-04-12
Original CVE updated: 2026-07-15
Advisory published: 2026-04-12
Advisory updated: 2026-07-15

Who should care

Users of R 3.4.4, particularly those using the GUI Preferences language field, should be aware of this vulnerability and take necessary precautions. This vulnerability can be exploited by attackers to execute arbitrary code, potentially leading to system compromise. Therefore, users should prioritize patching and mitigation strategies.

Technical summary

The CVE-2019-25695 vulnerability is a local buffer overflow issue in R 3.4.4. An attacker can inject malicious input into the GUI Preferences language field to execute arbitrary code. The vulnerability has a CVSS score of 8.6, indicating high severity. The CVSS vector is 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. The weakness is classified as CWE-787.

Defensive priority

High priority should be given to patching and mitigating this vulnerability. Users should update to a patched version of R and implement additional security measures to prevent exploitation.

Recommended defensive actions

Update to a patched version of R
Implement additional security measures to prevent exploitation
Monitor systems for suspicious activity
Restrict access to the GUI Preferences language field
Perform regular vulnerability assessments and penetration testing

Evidence notes

The CVE record and NVD detail provide official information about the vulnerability. Additional sources, such as exploit-db and Vulncheck, provide further details and advisories. The CVSS score and vector provide a quantitative measure of the vulnerability's severity.

Sources and references

Verified primary and authoritative sources

CVE-2019-25695 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2019-25695

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2019-25695 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2019-25695

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Source reference
Unverified legacy reference

URL: https://cloud.r-project.org/bin/windows/

[email protected]
Source reference
Unverified legacy reference

URL: https://www.exploit-db.com/exploits/46265

[email protected]
Source reference
Unverified legacy reference

URL: https://www.vulncheck.com/advisories/r-local-buffer-overflow-windows-xp-sp3

[email protected]
Source reference
Unverified legacy reference

URL: https://access.redhat.com/security/cve/CVE-2019-25695

0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source reference
Unverified legacy reference

URL: https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-25695.json

0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.