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TI-2020-16754 Aliases CVE-2020-27637GHSA-vw79-85j5-c56w

The R programming language’s default package manager CRAN is affected by a path traversal…

Priority MEDIUM 46CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

The R programming language’s default package manager CRAN is affected by a path traversal vulnerability that can lead to server compromise. This vulnerability affects packages installed via the R CMD install cli command or the install.packages() function from the interpreter. Update to version 4.0.3

Why it matters now

EPSS 0.02268 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:r-project:cran:*:*:*:*:*:*:*:*before 4.0.3VulnerableR-Project
  • cpe:2.3:a:r-project:cran:*:*:*:*:*:*:*:* Versions before 4.0.3 Vulnerable ·R-Project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27637
  2. 2026-10-03 Alias added: GHSA-vw79-85j5-c56w

References

Exploit 1

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences