Is CVE-2021-27216 actively exploited?

CVE-2021-27216 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-27216?

CVE-2021-27216 has a CVSS score of 6.3 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H.

How do I patch CVE-2021-27216?

Patch guidance is available from exim security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-27216.

CVE-2021-27216 - remediation guidance & executive summary

Description

Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local user can delete arbitrary files as root. This involves the -oP and -oPX options.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector: local
Complexity: high
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high
Weaknesses: CWE-362 · Race Condition

Metadata

Primary Vendor: EXIM
Published: 5/6/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-27216

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary