High severity · published Jun 4, 2026
CVE-2026-49203
Unauthenticated eSIM Configuration Manipulation
8.3
CVSS
0.2%
EPSS
No
On KEV
Description
Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
Connect M6E 5G Portable WiFi Router · Acer
through M6E_AI_1.00.000019 · source: vendor
CM
Connect M6e 5g Firmware · Acer
through m6e_ai_1.00.000019 · source: NVD
Affected product
CM
Connect M6E 5G Portable WiFi Router
Acer
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49203
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49203
Mitigation
https://community.acer.com/en/kb/articles/19707
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