CVE-2020-27654

Q: How do I fix CVE-2020-27654?

Upgrade router manager to 1.2.4-8081 or later.

Q: Is CVE-2020-27654 being actively exploited?

Not that we know of. CVE-2020-27654 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

Q: How severe is CVE-2020-27654?

CVE-2020-27654 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2020-27654 affect?

Published advisories record a fix for router manager (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALEPSS 91th pctl

9.8

CVSS v3

NVD

Description

Improper access control vulnerability in lbd in Synology Router Manager (SRM) before 1.2.4-8081 allows remote attackers to execute arbitrary commands via port (1) 7786/tcp or (2) 7787/tcp.

CWE-269Improper Privilege Management

How to fix

Remediation Available

router managerNVD

Affected:< 1.2.4-8081Fixed in:1.2.4-8081CVE-2020-27654derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.68%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Exploit2

Vendor Advisory1

synology.com

Related Vulnerabilities

Other CWE-269 (Improper Privilege Management) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12635	Critical	9.8	100%	-	Fix
CVE-2022-24637	Critical	9.8	99%	-	Fix
CVE-2017-5689	Critical	9.8	92%	KEV	Fix
CVE-2020-3243	Critical	9.8	88%	-	-
CVE-2024-21888	High	8.8	87%	-	-
CVE-2022-0441	Critical	9.8	85%	-	Fix

Common questions

How do I fix CVE-2020-27654?

Upgrade router manager to 1.2.4-8081 or later.

Is CVE-2020-27654 being actively exploited?

Not that we know of. CVE-2020-27654 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

How severe is CVE-2020-27654?

CVE-2020-27654 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-27654 affect?

Published advisories record a fix for router manager (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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 2024-11-21.