synology skynas firmware

Name: synology skynas firmware
Brand: synology

productUS

cpe:2.3:o:synology:skynas_firmware:*:*:*:*:*:*:*:*

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

by severity

2critical7high3medium1low

updated 2026-10-28

vulnerabilities (13)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2021-3156US	high7.8OT critical	100.0% (100th)	KEV	no fix	2021-01-26	—
CVE-2021-26561US	high8.1	2.06% (81st)	—	no fix	2021-02-26	—
CVE-2021-26562US	high8.1	1.90% (80th)	—	no fix	2021-02-26	—
CVE-2021-26566US	critical9.0	1.51% (74th)	—	no fix	2021-02-26	—
CVE-2021-26567US	high7.8	1.13% (66th)	—	no fix	2021-02-26	—
CVE-2020-27652US	high8.3OT elevated	0.83% (57th)	—	6.2.3-25426	2020-10-29	< 6.2.3-25426
CVE-2021-26560US	high7.4OT elevated	0.77% (55th)	—	no fix	2021-02-26	—
CVE-2021-26565US	medium5.9OT elevated	0.74% (55th)	—	no fix	2021-02-26	—
CVE-2020-27648US	critical9.0	0.72% (54th)	—	6.2.3-25426	2020-10-29	< 6.2.3-25426
CVE-2021-26564US	high8.7OT elevated	0.67% (52nd)	—	no fix	2021-02-26	—
CVE-2020-27650US	low3.7OT elevated	0.56% (46th)	—	6.2.3-25426	2020-10-29	< 6.2.3-25426
CVE-2019-3870US	medium6.1OT elevated	0.55% (46th)	—	no fix	2019-04-09	—
CVE-2021-26563US	medium6.7OT elevated	0.51% (44th)	—	no fix	2021-02-26	—

The flaw types (CWEs) most of these CVEs share.

CWE-319Cleartext Transmission of Sensitive Information3 CVEs
CWE-121Stack-based Buffer Overflow2 CVEs
CWE-787Out-of-bounds Write2 CVEs
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer1 CVEs
CWE-122Heap-based Buffer Overflow1 CVEs
CWE-193Off-by-one Error1 CVEs
CWE-200Exposure of Sensitive Information to an Unauthorized Actor1 CVEs
CWE-201Insertion of Sensitive Information Into Sent Data1 CVEs

Which sources assert this record, and when.

scry

Products carry known vulnerabilities once they are exposed to the internet. See what is exposed on your perimeter with a free passive scan.