CVE-2023-20080

CWE-129 — Improper Array Index Validation4 documents4 sources
Severity
7.5HIGH
EPSS
0.6%
top 31.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Cisco Cisco IOSCisco IOSCisco IOS XE
Timeline
PublishedMar 23

Description

A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to insufficient validation of data boundaries. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0

Affected Packages3 packages

▶NVDcisco/ios487 versions+486
▶NVDcisco/ios_xe365 versions+364
▶CVEListV5cisco/cisco_iosn/a

🔴Vulnerability Details

2
GHSA
GHSA-m5h2-j2j6-cwcw: A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote↗2023-03-23
▶
CVEList
Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability↗2023-03-23
▶

📋Vendor Advisories

1
Cisco
Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability↗2023-03-22
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CVE-2023-20080 (HIGH CVSS 7.5) | A vulnerability in the IPv6 DHCP ve | cvebase.io