Vulnerability Details : CVE-2021-27649
Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via unspecified vectors.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2021-27649
- cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*
- cpe:2.3:o:synology:diskstation_manager_unified_controller:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27649
1.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27649
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
Synology Inc. |
CWE ids for CVE-2021-27649
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: security@synology.com (Primary)
References for CVE-2021-27649
-
https://www.synology.com/security/advisory/Synology_SA_20_26
Synology Inc.Vendor Advisory
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