What is CVE-2020-27637?

CVE-2020-27637 is a critical-severity vulnerability in R-Project Cran, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-01-12.

How severe is CVE-2020-27637?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Path Traversal in R-Project Cran

CVE-2020-27637

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

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.022 (81.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

R-project Cran
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (vendor-advisory)

Frequently asked questions

What is CVE-2020-27637?: CVE-2020-27637 is a critical-severity vulnerability in R-Project Cran, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-01-12.
How severe is CVE-2020-27637?: Critical severity. CVSS v3 base score is 9.8 out of 10.