CVE-2024-41988: Missing Authentication for Critical Function vulnerability in TEM Opera Plus FM Family Transmitter

Severity: critical (CVSS 9.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-03 · updated 2026-06-17
Weakness: CWE-306

Description

TEM Opera Plus FM Family Transmitter allows access to an unprotected endpoint that allows MPFS File System binary image upload without authentication. This file system serves as the basis for the HTTP2 web server module but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.

Affected products

TEM Opera Plus FM Family Transmitter: 35.45

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-277-01

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