CVE-2021-27647
CRITICALCVSS 9.8/10EPSS 3.13%
Last modified
CVE-2021-27647 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 3.13% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Synology | Diskstation Manager | < 6.2.3-25426-3 |
References
- https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-339/Third Party Advisory, VDB Entry
- https://www.synology.com/security/advisory/Synology_SA_20_26Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-339/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2021-27647?
CVE-2021-27647 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.13% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27647?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-27647?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST