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-2016-9440

18
FAUCET Score

CVE-2016-9440 describes a denial-of-service vulnerability affecting the Tatsuya Kinoshita w3m fork prior to version 0.5.3-31. A remote attacker can trigger a segmentation fault and crash the w3m browser by enticing a user to open a specially crafted HTML page. This medium-severity vulnerability (CVSS 6.5) requires user interaction and has a high impact on availability, but no impact on confidentiality or integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.5.3-30CPE matchmatch criteria
cpe:2.3:a:tats:w3m:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.82%
Probability of exploitation in next 30 days
EPSS Percentile
76.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0182 is in the 88th percentile among its peer group of 26,219 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: w3m
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: w3m

Vendor Advisories (1)

redhatCVE-2016-9440Low

w3m: Null pointer dereference in formUpdateBuffer

Aug 19, 2016

References

github.com / tats/w3m/blob/master/ChangeLog
Issue TrackingPatch
github.com / tats/w3m/issues/22
Issue TrackingPatch
security.gentoo.org / glsa/201701-08
openwall.com / lists/oss-security/2016/11/18/3
Mailing ListThird Party Advisory
securityfocus.com / bid/94407