Is CVE-2021-21402 actively exploited?

CVE-2021-21402 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-21402?

CVE-2021-21402 has a CVSS score of 7.7 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

How do I patch CVE-2021-21402?

Patch guidance is available from jellyfin security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-21402.

Fix CVE-2021-21402 - HIGH jellyfin jellyfin

Description

Jellyfin is a Free Software Media System. In Jellyfin before version 10.7.1, with certain endpoints, well crafted requests will allow arbitrary file read from a Jellyfin server's file system. This issue is more prevalent when Windows is used as the host OS. Servers that are exposed to the public Internet are potentially at risk. This is fixed in version 10.7.1. As a workaround, users may be able to restrict some access by enforcing strict security permissions on their filesystem, however, it is recommended to update as soon as possible.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: changed
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-22 · Path Traversal

Metadata

Primary Vendor: JELLYFIN
Published: 3/23/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-21402

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary