CVE-2017-6728
HighSummary
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary code at the root privilege level on an affected system, due to Incorrect Permissions.
Risk Assessment
An attacker with local access could gain full control over the system, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to upgrade to fixed releases such as 6.3.1.15i.BASE, 6.2.3.1i.BASE, 6.2.2.15i.BASE, or 6.1.4.10i.BASE.
Other vulnerabilities in Cisco IOS XR Software
See all- CVE-2017-6731High
A vulnerability in Multicast Source Discovery Protocol (MSDP) ingress packet processing for Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the MSDP session to be unexpectedly reset, leading to a short denial of service (DoS) condition. The MSDP session will restart within a few seconds.
- CVE-2016-9205High
A vulnerability in the HTTP 2.0 request handling code of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the Event Management Service daemon (emsd) to crash, resulting in a denial of service (DoS) condition.
- CVE-2026-20074High
A vulnerability in the IS-IS multi-instance routing feature of Cisco IOS XR Software allows an unauthenticated, adjacent attacker to cause an unexpected restart of the IS-IS process. The issue is due to insufficient input validation of incoming IS-IS packets.
- CVE-2026-20046High
A vulnerability in Cisco IOS XR Software allows a local attacker with low privileges to elevate privileges to full administrative control over the device. The issue stems from incorrect mapping of a CLI command to task groups in the source code.
- CVE-2026-20040High
A vulnerability in the CLI of Cisco IOS XR Software allows an authenticated local attacker to execute arbitrary commands as root on the underlying operating system. This is due to insufficient validation of user arguments passed to specific CLI commands.
Original NVD description (English source)
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary code at the root privilege level on an affected system, because of Incorrect Permissions. More Information: CSCvb99389. Known Affected Releases: 6.2.1.BASE. Known Fixed Releases: 6.3.1.15i.BASE 6.2.3.1i.BASE 6.2.2.15i.BASE 6.1.4.10i.BASE.