Is CVE-2021-33591 in the CISA KEV catalog?

No. CVE-2021-33591 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-33591?

CVE-2021-33591 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-33591?

CVE-2021-33591 has an EPSS score of 1.59% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-33591?

Upgrade comic viewer to 1.0.15.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-33591

HIGHEPSS 73th pctl

8.8

CVSS v3

NVD

Description

An exposed remote debugging port in Naver Comic Viewer prior to 1.0.15.0 allowed a remote attacker to execute arbitrary code via a crafted HTML page.

CWE-489

How to fix

Remediation Available

comic viewerNVD

Affected:< 1.0.15.0Fixed in:1.0.15.0CVE-2021-33591derived 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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

1.59%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory1

cve.naver.com

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HTML

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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.