Public vulnerability disclosure

CVE-2026-79405

Improper Input Validation in Modem Firmware

publishedCWE-20

In Modem Firmware, there is a possible system crash due to improper input validation of dedicated PUCCH configuration. This could lead to remote denial of service with no additional execution privileges needed.

Technical severity7.5 highCVSS 3.1 · CNA: Unisoc
Published2026-11-04Source updated 2026-11-04
Collected2026-11-043 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Modem
Unisoc (Shanghai) Technologies Co., Ltd.
UDX710 (affected)
Other versions: unaffected
CNA: Unisoc

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 7.5
high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCNA: Unisoc
3.1 / 7.5
high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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