Is CVE-2018-4877 in the CISA KEV catalog?

No. CVE-2018-4877 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-4877?

CVE-2018-4877 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-4877?

CVE-2018-4877 has an EPSS score of 8.51% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-4877?

Upgrade Clean Flash Player 34.0.0.330 Installer to 28.0.0.161 or later.

CVE & CISA-KEV Catalog

CVE-2018-4877

CRITICALEPSS 94th pctl

9.8

CVSS v3

NVD

Description

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player's quality of service functionality. A successful attack can lead to arbitrary code execution.

CWE-416Use After Free

How to fix

Remediation Available

Clean Flash Player 34.0.0.330 InstallerWindows application

Affected:28.0.0.161Fixed in:28.0.0.161

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

8.51%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory1

helpx.adobe.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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.