Loading vulnerability…
CVE-2026-20128 is a vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager. The issue is caused by the presence of a credential file for the DCA user on an affected system. An attacker can send a crafted HTTP request to read that file and recover the DCA password. With those credentials, the attacker can access another affected system and obtain DCA user privileges. Available reporting is inconsistent on whether exploitation requires only remote unauthenticated access or an authenticated local user with vManage privileges; however, the core weakness is exposure of a stored credential that can be retrieved from the system and reused for privilege gain. Cisco states that releases 20.18 and later are not affected.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
99 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Cisco SD-WAN vulnerability mentioned as one of several other vulnerabilities discovered this year.
A Cisco SD-WAN vulnerability listed by the article as having detected exploitation in 2026.
A previously flagged actively exploited Cisco SD-WAN vulnerability referenced for context only.
A Cisco Catalyst SD-WAN Manager vulnerability identified as one of two information disclosure flaws in a group of vulnerabilities the article says attackers have been exploiting as zero- or n-days.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.