Is CVE-2018-12242 in the CISA KEV catalog?

No. CVE-2018-12242 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12242?

CVE-2018-12242 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-12242?

CVE-2018-12242 has an EPSS score of 2.95% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12242?

Upgrade messaging gateway to 10.6.6 or later.

CVE & CISA-KEV Catalog

CVE-2018-12242

CRITICALEPSS 85th pctl

9.8

CVSS v3

NVD

Description

The Symantec Messaging Gateway product prior to 10.6.6 may be susceptible to an authentication bypass exploit, which is a type of issue that can allow attackers to potentially circumvent security mechanisms currently in place and gain access to the system or network.

CWE-287Improper Authentication

How to fix

Remediation Available

messaging gatewayNVD

Affected:< 10.6.6Fixed in:10.6.6CVE-2018-12242derived 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.95%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Vendor Advisory1

support.symantec.com

Third-Party Advisory1

securityfocus.com

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	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 2024-11-21.