CVE-2002-0666
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length...
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.
Exploit likelihood
What each source reports
NVD Score used
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.
- Record
CVE-2002-0666- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.
- Record
CVE-2002-0666- Updated
- 2026-11-02
EUVDEUVD-2002-0660 No score
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.
- Record
EUVD-2002-0660- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p32c-ffc2-42q3 No score
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length...
IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data, which allows remote attackers to cause a denial of service (kernel panic) via spoofed, short Encapsulating Security Payload (ESP) packets, which result in integer signedness errors.
- Record
GHSA-p32c-ffc2-42q3- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
freeswanDebian:3.0 |
before 1.96-1.4, plus listed versions 1.96-1.2 |
1.96-1.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2002-0666 is a medium vulnerability (CVSS 5.0) in Frees Wan Wan, published October 25, 2002. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.47%, the 84th percentile. Fixed in freeswan 1.96-1.4.