Is CVE-2018-0434 in the CISA KEV catalog?

No. CVE-2018-0434 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-0434?

CVE-2018-0434 has a CVSS v3 base score of 7.4 (HIGH).

What is the EPSS score for CVE-2018-0434?

CVE-2018-0434 has an EPSS score of 0.84% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-0434?

Upgrade vedge 1000 firmware to 18.3.0 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-0434

HIGH

7.4

CVSS v3

NVD

Description

A vulnerability in the Zero Touch Provisioning feature of the Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data by using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

vedge 1000 firmwareNVD

Affected:< 18.3.0Fixed in:18.3.0CVE-2018-0434derived from NVD

vedge 100 firmwareNVD

Affected:< 18.3.0Fixed in:18.3.0CVE-2018-0434derived from NVD

vedge 2000 firmwareNVD

Affected:< 18.3.0Fixed in:18.3.0CVE-2018-0434derived from NVD

vedge 5000 firmwareNVD

Affected:< 18.3.0Fixed in:18.3.0CVE-2018-0434derived 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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.84%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Third-Party Advisory1

securityfocus.com

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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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.