Is CVE-2023-33778 in the CISA KEV catalog?

No. CVE-2023-33778 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-33778?

CVE-2023-33778 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2023-33778?

CVE-2023-33778 has an EPSS score of 0.60% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-33778?

Upgrade myvigor to 2.3.2 or later. Fixes are available for 72 affected products.

CVE & CISA-KEV Catalog

CVE-2023-33778

CRITICAL

9.8

CVSS v3

NVD

Description

Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware versions below v1.4.0, Switches firmware versions below 2.6.7, and Myvigor firmware versions below 2.3.2 were discovered to use hardcoded encryption keys which allows attackers to bind any affected device to their own account. Attackers are then able to create WCF and DrayDDNS licenses and synchronize them from the website.

CWE-798Hard-coded Credentials

How to fix

Remediation Available

myvigorNVD

Affected:< 2.3.2Fixed in:2.3.2CVE-2023-33778derived from NVD

vigor1000b firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor130 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor165 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor166 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor167 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2135ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2135ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2135fvac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2135vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2620l firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2620ln firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2763ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2765ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2765ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2765vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2766ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2766ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2766vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2832n firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862b firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862bn firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862l firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862lac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862ln firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862n firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2862vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2865ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2865ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2865l firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2865lac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2865vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2866ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2866ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2866l firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2866lac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2866vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2915ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2926 plus firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927ac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927ax firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927f firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927l firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927lac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2927vac firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor2962 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigor3910 firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigorap 1000c firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 1060c firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 903 firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 906 firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 912c firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 918r firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorap 960c firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2023-33778derived from NVD

vigorlte 200n firmwareNVD

Affected:>= 4.0.0, < 4.2.4Fixed in:4.2.4CVE-2023-33778derived from NVD

vigorswitch fx2120 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g1080 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g1085 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g1282 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g2100 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g2121 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g2280x firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch g2540xs firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch p1282 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch p2100 firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch p2280x firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch p2540xs firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch pq2121x firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch pq2200xb firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch q2121x firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived from NVD

vigorswitch q2200x firmwareNVD

Affected:< 2.6.7Fixed in:2.6.7CVE-2023-33778derived 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

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

0.60%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Exploit1

gist.github.com

Related Vulnerabilities

Other CWE-798 (Hard-coded Credentials) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26138	Critical	9.8	98%	KEV	-
CVE-2024-3272	Critical	9.8	98%	KEV	-
CVE-2025-30406	Critical	9.0	94%	KEV	Fix
CVE-2024-28987	Critical	9.1	93%	KEV	Fix
CVE-2019-15976	Critical	9.8	93%	-	Fix
CVE-2024-20439	Critical	9.8	92%	KEV	Fix

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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 2025-01-09.