CVE-2002-1747
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data...
CVE-2002-1747 is a medium vulnerability (CVSS 5.0) in Maxim Krasnyansky Vtun, published December 31, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 65th percentile. Fixed in vtun 2.5b2.
- Severity
- 5.0 MediumCVSS 2.0, NVD
- Exploit chance
- 1.07%EPSS, 65th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.5b2vtun
Description
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
vtunDebian:12 | before 2.5b2 | 2.5b2 |
What each source reports
NVD Score used
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
CVE-2002-1747- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
CVE ListNo score
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
CVE-2002-1747- Updated
- 2026-11-02
EUVDEUVD-2002-1726No score
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
EUVD-2002-1726- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hf68-wq7f-gmhqNo score
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data...
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
GHSA-hf68-wq7f-gmhq- Updated
- 2026-11-02
OSVNo score
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
CVE-2002-1747- Updated
- 2026-11-02
OSVDEBIAN-CVE-2002-1747No score
Vtun 2.5b1 does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on ECB.
- Record
DEBIAN-CVE-2002-1747- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.