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CVE-2022-26143 is a critical access control vulnerability affecting the TP-240 component in Mitel MiCollab before 9.4 SP1 FP1 and Mitel MiVoice Business Express through 8.1. The flaw permits remote, unauthenticated attackers to interact with the exposed component in a manner that bypasses intended access restrictions, leading to unauthorized access to sensitive information and services. Reported exploitation activity also indicates the vulnerability can be leveraged to gain initial access and execute code on affected devices. In addition to unauthorized access, exploitation can trigger denial-of-service conditions characterized by performance degradation and excessive outbound traffic. The vulnerability was exploited in the wild in early 2022 in activity associated with the TP240PhoneHome DDoS campaign.
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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.
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.
4 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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.