Is CVE-2017-7964 in the CISA KEV catalog?

No. CVE-2017-7964 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-7964?

CVE-2017-7964 has a CVSS v3 base score of 10.0 (CRITICAL).

What is the EPSS score for CVE-2017-7964?

CVE-2017-7964 has an EPSS score of 2.50% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-7964?

No published fix for CVE-2017-7964 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-7964

CRITICALEPSS 83th pctl

10.0

CVSS v3

NVD

Description

Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for remote attackers to conduct DNS hijacking attacks by reconfiguring the built-in dnshijacker process.

CWE-1188

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploit Intelligence

2.50%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Patch1

oxy-gen.mobi

Related Vulnerabilities

Other CWE-1188 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13927	Critical	9.8	100%	KEV	Fix
CVE-2023-27524	High	8.9	97%	KEV	-
CVE-2022-24706	Critical	9.8	93%	KEV	Fix
CVE-2020-11532	Critical	9.8	77%	-	Fix
CVE-2018-16752	High	8.8	43%	-	-
CVE-2020-14011	Critical	9.8	29%	-	-

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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 2026-05-13.