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CVE Record

CVE-2019-25695: R 3.4.4 Local Buffer Overflow Windows XP SP3

R 3.4.4 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by injecting malicious input into the GUI Preferences language field. Attackers can craft a payload with a 292-byte offset and JMP ESP instruction to execute commands like calc.exe when the payload is pasted into the Language for menus and messages field.

HighCVSS 8.6Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a local memory-corruption flaw in the old Windows build of R 3.4.4. Malicious input in a GUI preference field could make R run attacker-controlled code. The bundle does not show active exploitation or a named patch; exposure is mainly legacy Windows XP/R desktops, not internet-facing services.

Executive priority

Treat as high priority only where legacy R 3.4.4 on Windows XP exists. The business risk is endpoint code execution on unsupported systems; urgency drops sharply if those systems are absent.

Technical view

Sources describe a CWE-787 buffer overflow in R 3.4.4 on Windows XP SP3, reachable through the GUI Preferences language field. Public exploit material exists, but this assessment avoids reproduction details. The provided CVSS v4 score is 8.6 high. Evidence for affected versions beyond R 3.4.4 or formal remediation is incomplete.

Likely exposure

Most likely in legacy data-science, research, or lab workstations still running R 3.4.4 on Windows XP SP3. Modern R installations and non-Windows deployments are not identified as affected in the provided bundle.

Exploitation context

The bundle includes a public Exploit-DB reference, so proof-of-concept knowledge is public. KEV is false in the provided data, and no cited source establishes active exploitation in the wild.

Researcher notes

The useful research boundary is asset validation and version confirmation. Sources identify the vulnerable field and public exploit existence, but do not provide complete vendor fix lineage, broader version impact, or active exploitation evidence.

Mitigation direction

  • Upgrade R from 3.4.4 to a currently supported vendor release.
  • Retire or isolate Windows XP SP3 systems from normal user workflows.
  • Remove vulnerable R GUI installs from shared or high-value desktops.
  • Restrict local interactive access to legacy analysis workstations.
  • Check R Project, VulnCheck, and Red Hat guidance for remediation updates.

Validation and detection

  • Inventory endpoints for R 3.4.4, especially Windows XP SP3 hosts.
  • Confirm whether users can access the affected R GUI Preferences workflow.
  • Review endpoint telemetry for R crashes or unexpected child processes.
  • Check software deployment records for legacy R packages or installers.
  • Document any unsupported hosts requiring compensating controls.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · low confidence lookup

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.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2019-25695 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (4.0)
Known Exploited
No
Published

Vector: 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

Official CVE source material

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.

3CVSS vectors
5Timeline events
2ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total

CVSS vector scores

3 official scores

We 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.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 4.0HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheck
8.4CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9VulnCheck
8.4CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9redhat-SADP

Vulnerability scoring details

Base CVSS 4.0 score

8.6High
CVSS 4.0 vector shape for CVE-2019-25695Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: 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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPR: www.r-project.org: R: Arbitrary Code Execution via Local Buffer Overflow
other:Red Hat severity ratingcvssV3_1
  • 2026-04-12T13:00:59.713Z: Reported to Red Hat.
  • 2026-04-12T12:28:47.555Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
r-projectR3.4.4Listed
Weakness

CWE details

CWE-787

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-787 · source CWE mapping

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.

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