CVE-2014-3347 describes a denial-of-service vulnerability affecting Cisco 1800 Series Integrated Services Routers running IOS 15.1(4)M2 with ISDN Basic Rate Interface enabled. A remote attacker, knowing the ISDN phone number, can trigger an interrupt timer collision during entropy collection, leading to a device hang. This vulnerability has a CVSS score of 5.4, indicating medium severity, due to its network-based attack vector and high attack complexity, resulting in a complete loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
15.1\(4\)m2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.1\(4\)m2:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:h:cisco:1801_integrated_service_router:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:h:cisco:1802_integrated_service_router:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:h:cisco:1803_integrated_service_router:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:h:cisco:1811_integrated_service_router:-:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:H/Au:N/C:N/I:N/A:C
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