CVE-2021-33591

Q: How do I fix CVE-2021-33591?

Upgrade comic viewer to 1.0.15.0 or later.

Q: Is CVE-2021-33591 being actively exploited?

Not that we know of. CVE-2021-33591 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 73% of all scored CVEs.

Q: How severe is CVE-2021-33591?

CVE-2021-33591 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-33591 affect?

Published advisories record a fix for comic viewer (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

Related Vulnerabilities

Other CWE-489 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-32645	Critical	9.8	54%	-	-
CVE-2017-5259	High	8.8	39%	-	-
CVE-2022-20649	High	8.1	12%	-	-
CVE-2022-38715	High	8.8	3.7%	-	-
CVE-2018-5454	High	8.1	3.5%	-	-
CVE-2021-3972	Medium	6.7	3.0%	-	Fix

Common questions

How do I fix CVE-2021-33591?

Upgrade comic viewer to 1.0.15.0 or later.

Is CVE-2021-33591 being actively exploited?

Not that we know of. CVE-2021-33591 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.6% is the estimated probability that it will be exploited in the next 30 days. That is higher than 73% of all scored CVEs.

How severe is CVE-2021-33591?

CVE-2021-33591 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-33591 affect?

Published advisories record a fix for comic viewer (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2021-33591

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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.