Vulnerability Details : CVE-2021-27216
Potential exploit
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.
Products affected by CVE-2021-27216
- cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-27216
Top countries where our scanners detected CVE-2021-27216
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-27216 215,746
Threat actors abusing to this issue?
Yes
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affected by CVE-2021-27216!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-27216
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27216
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.3
|
MEDIUM | AV:L/AC:M/Au:N/C:N/I:C/A:C |
3.4
|
9.2
|
NIST | |
|
6.3
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.0
|
5.2
|
NIST |
CWE ids for CVE-2021-27216
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-27216
-
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28007-LFDIR.txt
Exploit;Vendor Advisory
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