Vulnerability Details : CVE-2021-27647
Out-of-bounds Read vulnerability in iscsi_snapshot_comm_core in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via crafted web requests.
Vulnerability category: Execute code
Products affected by CVE-2021-27647
- cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27647
2.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 83 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27647
| 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-2021-27647
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by:
- nvd@nist.gov (Primary)
- security@synology.com (Secondary)
References for CVE-2021-27647
-
https://www.synology.com/security/advisory/Synology_SA_20_26
Synology Inc.Vendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-21-339/
ZDI-21-339 | Zero Day InitiativeThird Party Advisory;VDB Entry
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