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CVE-2026-20310 is a remotely exploitable improper link resolution before file access vulnerability in Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager. The flaw is classified as CWE-59 and was addressed through Cisco security-hardening releases. Insufficient validation of link resolution during file access can cause the software to access unintended files or resources through manipulated symbolic links or equivalent link objects.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical authentication-related vulnerability in Cisco Catalyst SD-WAN that could allow attackers to access otherwise restricted areas.
A critical improper link resolution before file access vulnerability affecting Cisco Catalyst SD-WAN Software.
A critical Catalyst SD-WAN vulnerability described as improper link resolution before file access.
A critical Cisco Catalyst SD-WAN Software vulnerability involving improper link resolution before file access, potentially enabling symbolic link abuse to access unintended files.
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.