Description
Cisco IOS 11.x and 12.x allows remote attackers to cause a denial of service by sending the ENVIRON option to the Telnet daemon before it is ready to accept it, which causes the system to reboot.
CVSS Metrics
- Vector
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- network
- Access Cmplx
- low
- Auth
- none
- Confidentiality
- none
- Integrity
- none
- Availability
- partial
- Weaknesses
- NVD-CWE-Other
Metadata
- Primary Vendor
- CISCO
- Published
- 4/20/2000
- Last Modified
- 4/3/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
cisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : ioscisco : accesspathcisco : accesspathcisco : accesspathcisco : as5200cisco : as5300cisco : as5800cisco : system_controller_3640cisco : voice_gateway_as5800cisco : 3660_routercisco : 7100_routercisco : 7200_routercisco : 7500_routercisco : ubr7200
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