CRITICAL
CVE-2008-5340
CWE-264Published: December 5, 2008· Updated: Jun 16, 2026
10.0
CVSS v3.1
Official Description
Unspecified vulnerability in Java Web Start (JWS) and Java Plug-in with Sun JDK and JRE 6 Update 10 and earlier; JDK and JRE 5.0 Update 16 and earlier; and SDK and JRE 1.4.2_18 and earlier allows untrusted JWS applications to gain privileges to access local files or applications via unknown vectors, aka 6727081.
Technical Analysis
CVE-2008-5340 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C
Affected Vendors & Products
sun3 product(s)
jdkjresdk
Source: NVD CPE · 41 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 (64)
Quick Facts
CVE IDCVE-2008-5340
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-264
CISA KEVNo
Affected1 vendor(s)
PublishedDec 5, 2008
Related CVEs (CWE-264)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2008-5340 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.