Stack-based buffer overflow in NJStar Chinese and Japanese Word Processor 4.x and 5.x before 5.10 allows user-assisted attackers to execute…

published 2006-02-21 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-0813

cvss: 5.1; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 4.0%; EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits: 0; none known

Stack-based buffer overflow in NJStar Chinese and Japanese Word Processor 4.x and 5.x before 5.10 allows user-assisted attackers to execute arbitrary code via font names in NJStar (.njx) documents.

Patch / fix

links 2

secunia.com/advisories/18702 advisory
secunia.com/secunia_research/2006-5/advisory/ advisory

Exploit prediction

3.95% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

secunia.com http://secunia.com/secunia_research/2006-5/advisory/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

secunia.com /advisories/18702
third-party-advisory, patch, vendor-advisory
secunia.com /secunia_research/2006-5/advisory/
exploit, patch, vendor-advisory
vupen.com /english/advisories/2006/0670
vdb-entry, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/24773
vdb-entry
njstar.com /njstar/chinese/
securityreason.com /securityalert/461
third-party-advisory
njstar.com /njstar/japanese/
securityfocus.com /bid/16737
vdb-entry
osvdb.org /23354
vdb-entry
securityfocus.com /archive/1/425498/100/0/threaded
mailing-list
securitytracker.com /id?1015649
vdb-entry

Sources

CVE List CVE-2006-0807
NVD CVE-2006-0807

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary