Vulnerability Detail

TheHackerNews · Jun 16, 2026

Cisco has released security updates for a medium-severity security flaw in Catalyst SD-WAN Manager that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-20262, carries a CVSS score of 6.5 out of 10.0. "A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or

BleepingComputer · Jun 15, 2026

Cisco has released security updates to address a vulnerability in the Catalyst SD-WAN Manager, tracked as CVE-2026-20262, that was exploited in attacks to escalate to root privileges. [...]

Daily CyberSecurity · Jun 15, 2026

A Cisco SD-WAN vulnerability is now under active attack, and Cisco is urging customers to patch fast. Tracked The post Cisco SD-WAN Vulnerability Exploited in the Wild: Patch CVE-2026-20262 Now appeared first on Daily CyberSecurity. Related posts: Under Attack: Critical Cisco RCE (CVE-2026-20045) Exploited in the Wild Under Attack: Cisco Urges Immediate Action as Hackers Actively Exploit SD-WAN Manager Flaws CISA Warns of Active Exploitation in Cisco, PaperCut, and Zimbra

Cisco Security Advisory · Jun 15, 2026

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system. This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-arbfw-c2rZvQ Security Impact Rating: Medium CVE: CVE-2026-20262

All CISA Advisories · Jun 15, 2026

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-20262 Cisco Catalyst SD-WAN Manager Directory or Path Traversal Vulnerability CVE-2026-54420 LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.  Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.