Deserialization of untrusted data in R-Project R
Priority HIGH 73CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
Deserialization of untrusted data can occur in the R statistical programming language, on any version starting at 1.4.0 up to and not including 4.4.0, enabling a maliciously crafted RDS (R Data Serialization) formatted file or R package to run arbitrary code on an end user’s system when interacted with.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.23439 97th percentileScored 2026-11-07
Fix Fixed R (The R Project): 4.4.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA R (The R Project) Fixed in 4.4.0
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-27322
- 2026-10-03 Alias added: GHSA-82x4-8q4x-2qxv
References
Other 6
- https://hiddenlayer.com/research/r-bitrary-code-execution/
- https://https://kb.cert.org/vuls/id/238194
- https://www.kb.cert.org/vuls/id/238194
- http://www.openwall.com/lists/oss-security/2024/04/29/3
- https://lists.fedoraproject.org/archives/list/[email protected]/message/JVE5FDLFJGTAMOSJ6DREFAODEUBRFWSG/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZLV4OWXZIJ7EFBIWUZADUSHYJTFAQ4D/
More R-Project vulnerabilities
- 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-2019-15538 R 3.4.4 Windows x64 Buffer Overflow SEH DEP ASLR Bypass CVSS 4.0MEDIUM 6.9
- 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
- CVE-2024-27322 · CVE Program
- CVE-2024-27322 · NVD
- FIRST EPSS
- GHSA-82x4-8q4x-2qxv · GitHub Advisory Database · CC BY 4.0
- CVE-2024-27322 · Red Hat security data · CC BY 4.0
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