What is CVE-2021-20517?

CVE-2021-20517 is a high-severity vulnerability in Ibm Websphere Application Server Nd, classified under Path Traversal. CVSS score: 8.8/10. Published 2021-06-07.

How severe is CVE-2021-20517?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-20517 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Ibm Websphere Application Server Nd

CVE-2021-20517

IBM WebSphere Application Server Network Deployment 8.5 and 9.0 could allow a remote authenticated attacker to traverse directories. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to read and d…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.019 (76.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Websphere Application Server Nd — versions 8.5, 9.0
Ibm Websphere_application_server_nd

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

n0-traces/cve_

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-2021-20517?: CVE-2021-20517 is a high-severity vulnerability in Ibm Websphere Application Server Nd, classified under Path Traversal. CVSS score: 8.8/10. Published 2021-06-07.
How severe is CVE-2021-20517?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-20517 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.