Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-7436

27
FAUCET Score

CVE-2018-7436 is a heap-based buffer over-read vulnerability in FreeXL versions prior to 1.0.5, specifically within the parse_SST function, affecting Debian Linux and FreeXL projects. This high-severity vulnerability (CVSS 8.8) can be exploited remotely with low attack complexity, requiring user interaction, and could lead to high impacts on confidentiality, integrity, and availability. Despite its severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), it is not listed in CISA's KEV catalog, and it has received no significant community discussion or media coverage, indicating a lack of active exploitation or widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.5CPE matchmatch criteria
cpe:2.3:a:freexl_project:freexl:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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
2.18%
Probability of exploitation in next 30 days
EPSS Percentile
80.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0218 is in the 79th percentile among its peer group of 14,848 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: freexl

Vendor Advisories (1)

redhatCVE-2018-7436Low

freexl: heap-buffer-overflow in parse_SST parse_SST in freexl.c

Feb 22, 2018

References

bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
groups.google.com / forum
lists.debian.org / debian-lts-announce/2018/03/msg00000.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202007-44
debian.org / security/2018/dsa-4129
Third Party Advisory