HOMEVULNERABILITIESCVE-2018-1000661
MEDIUM

CVE-2018-1000661

CWE-476Published: September 6, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

jsish version 2.4.67 contains a CWE-476: NULL Pointer Dereference vulnerability in Jsi_LogMsg (jsiUtils.c:196) that can result in Crash due to segmentation fault. This attack appear to be exploitable via the victim executing specially crafted javascript code. This vulnerability appears to have been fixed in 2.4.69.

NVD Source

Technical Analysis

CVE-2018-1000661 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

jsish1 product(s)
jsish
Source: NVD CPE · 1 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

ADVISORYhttps://jsish.org/fossil/jsi/tktview/2adeb066894695b38309d92771aea11c8e0a56a8
ADVISORYhttps://jsish.org/fossil/jsi/tktview/2adeb066894695b38309d92771aea11c8e0a56a8

All References (2)

→
https://jsish.org/fossil/jsi/tktview/2adeb066894695b38309d92771aea11c8e0a56a8Vendor Advisory
→
https://jsish.org/fossil/jsi/tktview/2adeb066894695b38309d92771aea11c8e0a56a8Vendor Advisory

Quick Facts

CVE IDCVE-2018-1000661
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected1 vendor(s)
PublishedSep 6, 2018

Related CVEs (CWE-476)

CVE-2022-36648
10.0
CVE-2010-2495
10.0
CVE-2014-8241
9.8
CVE-2016-5689
9.8
CVE-2016-3821
9.8
CVE-2016-5690
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1000661 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. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2018-1000661·NVD