CVE-2018-3847

Name: CVE-2018-3847
Creator: NVD / NIST
Published: 2018-08-01T19:29:00.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.84%

Last modified Jun 17, 2026

CVE-2018-3847 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 3.42. Specially crafted images parsed via the library, can cause a stack-based buffer overflow overwriting arbitrary data. EPSS estimates a 2.84% chance of exploitation in the next 30 days.

Description

Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.84%

84.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Nasa	Cfitsio	3.42

References

https://security.gentoo.org/glsa/202101-24Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530Exploit, Third Party Advisory
https://security.gentoo.org/glsa/202101-24Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530Exploit, Third Party Advisory

Timeline

Published: Aug 1, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-3847?

How severe is CVE-2018-3847?

CVE-2018-3847 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.84% probability of exploitation in the next 30 days.

How do I fix CVE-2018-3847?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3847?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST