The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice…
Priority CRITICAL 100Exploited in the wildCWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.
Summary
The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers to obtain sensitive information and cause a denial of service (performance degradation and excessive outbound traffic). This was exploited in the wild in February and March 2022 for the TP240PhoneHome DDoS attack.
Why it matters now
Exploitation Active In CISA KEV since 2022-03-25CISA due date 2022-04-15
EPSS 0.87325 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:* | before 9.4 | Vulnerable | Mitel |
| cpe:2.3:a:mitel:micollab:9.4:-:*:*:*:-:*:* | 9.4 | Vulnerable | Mitel |
| cpe:2.3:a:mitel:micollab:9.4:sp1:*:*:*:-:*:* | 9.4 sp1 | Vulnerable | Mitel |
| cpe:2.3:a:mitel:mivoice_business_express:*:*:*:*:*:*:*:* | up to 8.1 | Vulnerable | Mitel |
- cpe:2.3:a:mitel:micollab:*:*:*:*:*:-:*:* Versions before 9.4 Vulnerable ·Mitel
- cpe:2.3:a:mitel:micollab:9.4:-:*:*:*:-:*:* Versions 9.4 Vulnerable ·Mitel
- cpe:2.3:a:mitel:micollab:9.4:sp1:*:*:*:-:*:* Versions 9.4 sp1 Vulnerable ·Mitel
- cpe:2.3:a:mitel:mivoice_business_express:*:*:*:*:*:*:*:* Versions up to 8.1 Vulnerable ·Mitel
Remediation
No fixed version listed by the sources yet.
Timeline
- 2022-03-25 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2022-26143
- 2026-10-03 Alias added: GHSA-xh7f-2c8g-37p4
References
Advisory 6
- https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-22-0001
- https://www.akamai.com/blog/security/phone-home-ddos-attack-vector
- https://www.shadowserver.org/news/cve-2022-26143-tp240phonehome-reflection-amplification-ddos-attack-vector/
- https://news.ycombinator.com/item?id=30614073
- https://blog.cloudflare.com/cve-2022-26143/
- https://team-cymru.com/blog/2022/03/08/record-breaking-ddos-potential-discovered-cve-2022-26143/
More Mitel Micollab vulnerabilities
- TI-2024-27773 A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab… KEVCVSS 3.1CRITICAL 9.1
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2024-23347 A vulnerability in NuPoint Messenger (NPM) of Mitel MiCollab through 9.8.0.33 allows an… CVSS 3.1CRITICAL 9.8
- TI-2024-36877 Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative… KEVCVSS 3.1MEDIUM 4.4
- TI-2018-02664 Observable discrepancy in Intel Multiple CVSS 3.1MEDIUM 5.5
- TI-2024-23346 A vulnerability in NuPoint Messenger (NPM) of Mitel MiCollab through 9.8.0.33 allows an… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-26143 · CVE Program
- CVE-2022-26143 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-xh7f-2c8g-37p4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences