CVE-2024-41713
CVE-2024-41713 is a security flaw in Mitel MiCollab. Attackers can read files on Mitel MiCollab that should be out of reach from anywhere, without logging in. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 7 Jan 2025, and says ransomware gangs have used it.[1]
Mitel MiCollab is business software or equipment. Most families won’t have it, but attackers break into it to get inside companies, and from there to what those companies hold about their customers, patients and staff. Mitel has published a fix or advice.
Description
CISA calls it a path traversal in Mitel MiCollab. In its words: “Mitel MiCollab contains a path traversal vulnerability that could allow an attacker to gain unauthorized and unauthenticated access. This vulnerability can be chained with CVE-2024-55550, which allows an unauthenticated, remote attacker to read arbitrary files on the server.”[1]
The CVE record adds: “A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab through 9.8 SP1 FP2 (9.8.1.201) could allow an unauthenticated attacker to conduct a path traversal attack, due to insufficient input validation. A successful exploit could allow unauthorized access, enabling the attacker to view, corrupt, or delete users' data and system configurations.”[2]
The underlying weakness is path traversal (CWE-22), in MITRE’s list of common software weaknesses.
It scores 9.1 out of 10 on the Common Vulnerability Scoring System, which rates it critical, scored by NVD using CVSS 3.1.[2]
Affected versions
NVD’s record doesn’t list version ranges for it; Mitel’s advisory has them[3]. CISA names the product as Mitel MiCollab.
Most families won’t have Mitel MiCollab; it’s for whoever looks after IT at work.
Exploitation
CISA added it to its catalog of known exploited vulnerabilities on 7 Jan 2025, 78 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 28 Jan 2025 to fix it.[1] CISA says ransomware gangs have used it.
FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 97%. That’s in the top 1% of the flaws it scores.[4]
CISA assesses it as automatable: attackers can run it against many targets at once.
CISA doesn’t say who was attacked, or how.
Fix
Mitel has published a fix or advice.[3] CISA’s required action: “Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.”[1]
- Check whether you use it.Mitel MiCollab is business software or equipment, so most families won’t have it. If you run a business, or work from home on company equipment, ask whoever looks after your IT.
- Send this page to your IT person.Ask them to confirm it’s fixed, or not in use. CISA gave US government agencies until 28 Jan 2025 to fix it.
- If it can’t be fixed, take it offline.CISA’s advice when there’s no fix is to stop using the product, or take it off the internet, until there is one.
You can’t fix someone else’s server, but you can watch for what follows a break-in like this: a breach notice, a password reset you didn’t ask for, or a scam message that knows things it shouldn’t. HARD watches for those for you and your family.
Timeline
| Date | Event |
|---|---|
| The flaw is made public in the National Vulnerability Database, with a severity score of 9.1.[2] | |
| CISA adds it to its catalog of flaws known to be used in attacks, noting that ransomware gangs have used it.[1] | |
| CISA’s deadline for US government agencies to fix it.[1] | |
| FIRST puts the odds of it being used in attacks in the next 30 days at 97%.[4] |
See also
Other Mitel MiCollab flaws
- CVE-2024-55550: path traversal ·
Other Mitel flaws
- CVE-2024-41710, Mitel SIP Phones: argument injection ·
- CVE-2022-41223, Mitel MiVoice Connect: code injection ·
- CVE-2022-40765, Mitel MiVoice Connect: command injection ·
- CVE-2022-29499, Mitel MiVoice Connect: data validation ·
- CVE-2022-26143, Mitel MiCollab, MiVoice Business Express: access control ·
Other path traversal flaws
- CVE-2025-61624, Fortinet products: path traversal ·
- CVE-2021-3199, ONLYOFFICE Docs: server path traversal ·
- CVE-2026-104286, Fortinet FortiMail: path traversal ·
- CVE-2026-93616, Check Point products: path traversal ·
- CVE-2026-66384, JFrog Artifactory: improper limitation of a pathname to a restricted directory ·
Added the same day
- CVE-2024-55550, Mitel MiCollab: path traversal ·
- CVE-2020-2883, Oracle WebLogic Server: unspecified ·
Every Mitel flaw on CISA’s list · Everything added in January 2025
References
- ^ Cybersecurity and Infrastructure Security Agency. “Mitel MiCollab Path Traversal Vulnerability”. Known Exploited Vulnerabilities Catalog, added 7 Jan 2025.
- ^ National Institute of Standards and Technology. “CVE-2024-41713 Detail”. National Vulnerability Database, published 21 Oct 2024.
- ^ Mitel. Advisories and fixes: mitel.com.
- ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.972, percentile 99.9, 31 Oct 2026.
- CVE Program. “CVE-2024-41713”. The official CVE record.
This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.