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CVE-2018-3849

29
FAUCET Score

CVE-2018-3849 is a stack-based buffer overflow vulnerability in the ffghtb function of NASA CFITSIO 3.42, affecting fedoraproject cfitsio, fedoraproject fedora, nasa cfitsio, and nasa fedora. An attacker can exploit this by delivering a specially crafted FIT image, potentially leading to arbitrary code execution. Rated 8.8 HIGH (CVSSv3.1), it requires user interaction (UI:R) but can be exploited remotely over the network (AV:N). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.490CPE matchmatch criteria
cpe:2.3:a:nasa:cfitsio:*:*:*:*:*:*:*:*
28CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.03%
Probability of exploitation in next 30 days
EPSS Percentile
89.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0403 is in the 89th percentile among its peer group of 14,824 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: cfitsio

Vendor Advisories (1)

redhatCVE-2018-3849Important

cfitsio: Stack-based buffer overflow in ffghtb() allows for potential code execution

Mar 10, 2018

References

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/K46I2MFPCEOGC5LLDXZSWPB3EBPON3KA
security.gentoo.org / glsa/202101-24
Third Party Advisory
talosintelligence.com / vulnerability_reports/TALOS-2018-0531
ExploitTechnical DescriptionThird Party Advisory