CVE-2022-26143 kev in the critical feed json
The TP-240 (aka tp240dvr) component in Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 allows remote attackers t…
published 2022-03-09 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-30710
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-03-25
- epss
- 87.3%
- EPSS 87.3% chance of exploitation in 30 days, percentile 99.7%
- public exploits
- 0
- none known, plus a Nuclei check
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.
Patch / fix
cisa required action Apply updates per vendor instructions.
- mitel micollab 9.4
Timeline
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-04-15 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Mitel, MiCollab, MiVoice Business Express
- CISA name
- MiCollab, MiVoice Business Express Access Control Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- yes
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
87.33% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Mitel MiCollab - Information Disclosure & Denial of Service nuclei detection template
- arstechnica.com https://arstechnica.com/information-technology/2022/03/ddosers-use-new-method-capable-of-amplifying-traffic-by-a-factor-of-4-billion/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:N/C:P/I:P/A:C |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
arstechnica.com
/information-technology/2022/03/ddosers-use-new-method-capable-of-amplifying-traffic-by-a-factor-of-4-billion/
exploit, press/media-coverage, third-party-advisory
-
mitel.com
/en-ca/support/security-advisories/mitel-product-security-advisory-22-0001
vendor-advisory
-
akamai.com
/blog/security/phone-home-ddos-attack-vector
mitigation, third-party-advisory
-
shadowserver.org
/news/cve-2022-26143-tp240phonehome-reflection-amplification-ddos-attack-vector/
mitigation, third-party-advisory
-
news.ycombinator.com
/item?id=30614073
issue-tracking, third-party-advisory
-
blog.cloudflare.com
/cve-2022-26143/
mitigation, third-party-advisory
-
team-cymru.com
/blog/2022/03/08/record-breaking-ddos-potential-discovered-cve-2022-26143/
broken-link, mitigation, third-party-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26143
government-resource, us-government-resource
Sources
- CVE List CVE-2022-26143
- NVD CVE-2022-26143
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