Is CVE-2018-3846 in the CISA KEV catalog?

No. CVE-2018-3846 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-3846?

CVE-2018-3846 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-3846?

CVE-2018-3846 has an EPSS score of 3.07% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-3846?

Upgrade cfitsio on debian 11 to 3.430-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-3846

HIGHEPSS 86th pctl

8.8

CVSS v3

NVD

Description

In the ffgphd and ffgtkn functions in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

cfitsioDebian

Fixed in:3.430-1CVE-2018-3846

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

3.07%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Exploit1

talosintelligence.com

Third-Party Advisory1

security.gentoo.org

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	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.