CVE-2026-20320
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk29th percentile - higher than 29% of all known CVEs
Summary
A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system. This vulnerability exists because XML entries are improperly parsed due to external entity resolution being allowed by default. An attacker could exploit this vulnerability by sending a crafted XML message to the Open Client Interface – Provisioning (OCI-P) service, allowing the attacker to view sensitive files from the filesystem with the privileges of the Cisco BroadWorks user.
Risk Assessment
An attacker could gain access to confidential configuration data, potentially leading to further attacks or system compromise.
Recommendation
Apply the patches provided by Cisco and disable external entity resolution in the XML parser if possible.
Related vulnerabilities
- CVE-2026-120213Critical
@fastify/http-proxy versions 9.0.0 through 11.6.5 substitute URL-decoded route parameters into rewritePrefix without re-encoding them. A parameter value encoding a path separator with a fragment or query delimiter decodes into real separators, injecting extra upstream path segments and stripping the mandatory suffix. An unauthenticated remote attacker can reach upstream locations outside the intended prefix, leading to path-restriction bypass and, depending on the upstream, SSRF or authorization bypass.
- CVE-2026-120345Critical
A vulnerability was found in the WAVLINK WN551X3-A device, affecting the sub_41a430 function in /bin/ioos within the DNS Resolution Handler component. Manipulating the data argument results in OS command injection, and the attack can be launched remotely. The exploit has been made public and could be used.
- CVE-2025-11969Critical
The System REST APIs do not correctly enforce access control mechanisms, allowing users with lower privilege roles to execute administrative actions that should be restricted. This weakness permits unauthorized operations on the affected product. APIs exposed through the WSO2 API Manager's API Gateway are not affected.
- CVE-2026-120344Critical
A vulnerability was found in the WAVLINK WN551X3-A device in the system function of /bin/ioos, within the WireGuard CLI Group Handler component. Manipulating the group_name argument leads to OS command injection, and the attack can be performed remotely. The exploit has been publicly disclosed and may be used.
- CVE-2026-120322Critical
A vulnerability was identified in Termix-SSH Termix up to 2.9.2 affecting the /plugin-api/file-manager/transferToHost endpoint. Manipulation of the destPath argument leads to path traversal, and the attack can be launched remotely. The exploit is publicly available and may be used.
- CVE-2026-120283Critical
A vulnerability was identified in Linksys E8450 version 1.2.00.360516 in the strcpy function of /www/cgi-bin/portal.cgi. Manipulation of the hidden_timezone argument leads to a stack-based buffer overflow. The attack can be executed remotely, and the vendor did not respond to the disclosure.
- CVE-2026-120282Critical
A vulnerability was determined in WAVLINK WN536AX6-A version V260507 in the host_black function of /protocol.csp. Manipulation of the mac argument causes OS command injection. The exploit has been publicly disclosed and remote exploitation is possible.
- CVE-2026-120281Critical
A vulnerability was found in WAVLINK WN536AX6-A version V260507 in the OpenVPN Handler component, in the strcpy function of /protocol.csp. Manipulation of the openvpn_ip argument results in a stack-based buffer overflow. The exploit has been made public and the attack may be launched remotely.
- CVE-2026-120280Critical
A vulnerability has been found in WAVLINK WN536AX6-A version V260507 in the WireGuard component, in the wireguard_cli_group handler of /protocol.csp. Manipulation of the group_id/group_name arguments leads to OS command injection. The exploit has been disclosed publicly and the attack may be initiated remotely.
- CVE-2026-120279Critical
A flaw has been found in WAVLINK WN536AX6-A version V260507 in the openvpn_cli Handler component, in an unknown function of /protocol.csp. Manipulation of the file_id argument can lead to OS command injection. The exploit has been published and the attack can be launched remotely.
Original NVD description (English source)
A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system. This vulnerability exists because XML entries are improperly parsed due to external entity resolution being allowed by default. An attacker could exploit this vulnerability by sending a crafted XML message to the Open Client Interface – Provisioning (OCI-P) service. A successful exploit could allow the attacker to view sensitive files from the filesystem with the privileges of the Cisco BroadWorks user.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

