CVE-2020-27637

9.8 criticalEPSS 2.3%

Critical (9.8) in r-project cran. EPSS 2.3% chance of exploitation in the next 30 days.

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

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2021-01-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

r-project:cran

References

https://labs.bishopfox.com/advisories/cran-version-4.0.2
https://security.gentoo.org/glsa/202401-07
https://www.r-project.org/foundation/
https://labs.bishopfox.com/advisories/cran-version-4.0.2
https://security.gentoo.org/glsa/202401-07

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