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CVE

CVE-2014-3321

Cisco IOS XR 4.3.4 and earlier on ASR 9000 devices, when bridge-group virtual interface (BVI) routing is enabled, allows

Cisco IOS XR 4.3.4 and earlier on ASR 9000 devices, when bridge-group virtual interface (BVI) routing is enabled, allows remote attackers to cause a denial of service (chip and card hangs) via a series of crafted MPLS packets, aka Bug ID CSCuo91149.

MEDIUM · CVSS 5.7 EPSS 0.00443
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

9
cisco ios xr<= 4.3.4
cisco ios xrall versions
cisco asr 9000 rsp440 routerall versions
cisco asr 9001all versions
cisco asr 9006all versions
cisco asr 9010all versions
cisco asr 9904all versions
cisco asr 9912all versions
▣

Scoring & Timeline

5.7
MEDIUM · CVSS v2 (legacy) · psirt@cisco.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:A/AC:M/Au:N/C:N/I:N/A:C
Published to NVD18 Jul 2014 · 12:55 AM
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3321Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=34936Vendor Advisory
http://www.securitytracker.com/id/1030597Third Party AdvisoryVDB Entry
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