MEDIUM
CVE-2016-9436
CWE-20Published: January 20, 2017· Updated: Jun 17, 2026
6.5
CVSS v3.1
Official Description
parsetagx.c in w3m before 0.5.3+git20161009 does not properly initialize values, which allows remote attackers to crash the application via a crafted html file, related to a <i> tag.
Technical Analysis
CVE-2016-9436 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected Vendors & Products
openSUSE1 product(s)
leap
opensuse_project1 product(s)
leap
tats1 product(s)
w3m
Source: NVD CPE · 3 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (12)
→
http://lists.opensuse.org/opensuse-updates/2016-12/msg00084.htmlThird Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/11/18/3Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/94407Third Party Advisory · VDB Entry
→
https://github.com/tats/w3m/commit/33509cc81ec5f2ba44eb6fd98bd5c1b5873e46bdIssue Tracking · Patch · Technical Description
→
https://github.com/tats/w3m/issues/16Issue Tracking · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/201701-08Third Party Advisory · VDB Entry
→
http://lists.opensuse.org/opensuse-updates/2016-12/msg00084.htmlThird Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/11/18/3Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/94407Third Party Advisory · VDB Entry
→
https://github.com/tats/w3m/commit/33509cc81ec5f2ba44eb6fd98bd5c1b5873e46bdIssue Tracking · Patch · Technical Description
→
https://github.com/tats/w3m/issues/16Issue Tracking · Patch · Third Party Advisory
→
https://security.gentoo.org/glsa/201701-08Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2016-9436
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected3 vendor(s)
PublishedJan 20, 2017
Related CVEs (CWE-20)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-9436 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.