Is CVE-2021-29085 in the CISA KEV catalog?

No. CVE-2021-29085 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-29085?

CVE-2021-29085 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2021-29085?

CVE-2021-29085 has an EPSS score of 1.33% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-29085?

Upgrade diskstation manager to 6.2.3-25426-3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-29085

HIGH

8.6

CVSS v3

NVD

Description

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in file sharing management component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to read arbitrary files via unspecified vectors.

CWE-74Injection

How to fix

Remediation Available

diskstation managerNVD

Affected:>= 6.2, < 6.2.3-25426-3Fixed in:6.2.3-25426-3CVE-2021-29085derived from NVD

diskstation manager unified controllerNVD

Affected:< 3.1-23033Fixed in:3.1-23033CVE-2021-29085derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploit Intelligence

1.33%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Vendor Advisory1

synology.com

Related Vulnerabilities

Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2251	Critical	9.8	100%	KEV	Fix
CVE-2023-22527	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-2725	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2022-35914	Critical	9.8	100%	KEV	-
CVE-2019-17558	High	7.5	99%	KEV	Fix

Embed a live status badge for CVE-2021-29085

Markdown

[![CVE-2021-29085](https://tridentstack.com/cve/badge/CVE-2021-29085.svg)](https://tridentstack.com/cve/CVE-2021-29085)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-29085"><img src="https://tridentstack.com/cve/badge/CVE-2021-29085.svg" alt="CVE-2021-29085"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-14.