CVE-2019-25485Public exploit

Local process crash via menu-language buffer overflow

Published Mar 11, 2026 · Updated Mar 11, 2026

Buffer overflow in R 3.4.4 for Windows x64 allows local users to crash the process through the GUI menu-language preference. The field processes an 8,000-byte value without enforcing its buffer boundary, overwriting the SEH record after 1,016 bytes and pivoting into a ROP chain. Local GUI access is required, and the CNA's scored impact is limited to loss of availability despite the public exploit's shellcode payload.

CVSS severity6.9
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in R 3.4.4 for Windows x64 allows local users to crash the process through the GUI menu-language preference. The field processes an 8,000-byte value without enforcing its buffer boundary, overwriting the SEH record after 1,016 bytes and pivoting into a ROP chain. Local GUI access is required, and the CNA's scored impact is limited to loss of availability despite the public exploit's shellcode payload.

The record

CVE
CVE-2019-25485
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
R Foundation for Statistical Computing
Product
R
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.4.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

R Foundation for Statistical Computing · Rversion=3.4.4

Published CVSS scores

6.2VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.9VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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