synced 1 MIN AGO
01 Record

CVE-2020-27650

Synology DiskStation Manager (DSM) before 6.2.3-25426-2 does not set the Secure flag for the session cookie in an HTTPS session, which makes it easier for remote attackers to capture this cookie by

MediumPUBLISHEDCNA: synology
CNA base score5.8 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

02 Description

Synology DiskStation Manager (DSM) before 6.2.3-25426-2 does not set the Secure flag for the session cookie in an HTTPS session, which makes it easier for remote attackers to capture this cookie by

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.55% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 46.2% of scored records. A rank, not a probability.
NVD base score
3.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-10-29 09:00Z6 YR AGO
Last updated
2024-09-16 23:10Z2 YR AGO
Reserved
2020-10-22
Assigning CNA
synology
Record state
PUBLISHED
Severity
Medium (CVSS 5.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
Weaknesses
  • CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' AttributeVariant
  • CWE-311Missing Encryption of Sensitive DataClass
Data version
5.1
Document digest
ee5c23385c4a49a7a016b5a65402436537a23f1bf299f63b83d32b7ea7cd9bdf

05 Affected products

VendorProductVersionsPlatforms
SynologyDiskStation Manager (DSM)< 6.2.3-25426-2—

06 References