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CVE-2026-28299 is a high-severity denial-of-service vulnerability affecting SolarWinds Web Help Desk 2026.1 and all previous versions, fixed in Web Help Desk 2026.2. According to the provided advisory content, exploitation can cause the Web Help Desk server to crash due to insufficient memory. The issue is mapped to CWE-770, indicating allocation of resources without limits or throttling. The provided CVSS v3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H, indicating network-reachable exploitation with low attack complexity, no privileges required, and no user interaction.
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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.
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Patch, then assume compromise.
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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.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A denial-of-service vulnerability affecting SolarWinds Web Help Desk in versions prior to 2026.2.
A denial-of-service vulnerability in SolarWinds Web Help Desk that can cause server crashes due to insufficient memory.
A denial-of-service vulnerability in SolarWinds Web Help Desk that can cause the server to crash due to insufficient memory.
A denial-of-service vulnerability affecting SolarWinds Web Help Desk.
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.