VULNERABILITY INTELLIGENCE

CVE-2015-4293

CVSS score5 MEDIUM
EPSS probability1.81%
CISA KEVNot currently listed
Published2015-07-30
Last modified2026-06-17
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:P

Description

The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.

Primary references