CVE-2019-1751 describes a denial-of-service vulnerability in Cisco IOS Software's Network Address Translation 64 (NAT64) functions. An unauthenticated, remote attacker can exploit this by sending specific IPv4 packet streams through the device, causing either an interface queue wedge or a device reload. With a CVSS score of 7.5 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
15.4\(1\)cg1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.4\(1\)cg1:*:*:*:*:*:*:* | ||
15.4\(1\)tCPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.4\(1\)t:*:*:*:*:*:*:* | ||
15.4\(1\)t1CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.4\(1\)t1:*:*:*:*:*:*:* | ||
15.4\(1\)t2CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.4\(1\)t2:*:*:*:*:*:*:* | ||
15.4\(1\)t3CPE matchmatch criteria | cpe:2.3:o:cisco:ios:15.4\(1\)t3:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.