CVE-2003-1339Ezmeeting Memory Corruption
Stack-based buffer overflow in eZnet.exe, as used in eZ (a) eZphotoshare, (b) eZmeeting, (c) eZnetwork, and (d) eZshare allows remote attackers to cause a denial of service (crash) or execute arbitrary code, as demonstrated via (1) a long GET request and (2) a long operation or…
Published Dec 31, 2003 · Updated Apr 15, 2026
Key Facts
Patch immediately- CVE-2003-1339 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Ezmeeting.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 49% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
49%
Higher than 98.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
41/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Description
Stack-based buffer overflow in eZnet.exe, as used in eZ (a) eZphotoshare, (b) eZmeeting, (c) eZnetwork, and (d) eZshare allows remote attackers to cause a denial of service (crash) or execute arbitrary code, as demonstrated via (1) a long GET request and (2) a long operation or autologin parameter to SwEzModule.dll.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| EzmeetingEzmeeting | 3.3, 3.4, 3.5 | n/a |
Timeline
Publicly disclosed
Dec 31, 2003
Last updated
Apr 15, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploit1008412
- exploitExploitDB-136
- other20031207 eZ Multiple Packages Stack Overflow Vulnerability
- other20031211 eZ and eZphotoshare fixes
- other133
FAQ
Common Questions.
Stack-based buffer overflow in eZnet.exe, as used in eZ (a) eZphotoshare, (b) eZmeeting, (c) eZnetwork, and (d) eZshare allows remote attackers to cause a denial of service (crash) or execute arbitrary code, as demonstrated via (1) a long GET request and (2) a long operation or autologin parameter to SwEzModule.dll.
Affected: Ezmeeting versions 3.3, 3.4, 3.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2003-1339 On Your Attack Surface?
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