What is CVE-2021-20511?

CVE-2021-20511 is a medium-severity vulnerability in Docker, classified under Path Traversal. CVSS score: 4.9/10. Published 2021-07-15.

How severe is CVE-2021-20511?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Path Traversal in Docker

CVE-2021-20511

IBM Security Verify Access Docker 10.0.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 198300.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.019 (77.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Docker
Ibm Security_verify_access — versions 10.0.0
Ibm Security Verify Access Docker — versions 10.0.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

psirt@us.ibm.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
psirt@us.ibm.com (VDB Entry, vdb-entry, Vendor Advisory, x_refsource_XF)

Frequently asked questions

What is CVE-2021-20511?: CVE-2021-20511 is a medium-severity vulnerability in Docker, classified under Path Traversal. CVSS score: 4.9/10. Published 2021-07-15.
How severe is CVE-2021-20511?: Medium severity. CVSS v3 base score is 4.9 out of 10.