CVE-2026-20401 — Reachable Assertion in INC Mediatek Chipset

CWE-617 — Reachable AssertionCWE-754 — Improper Check for Unusual or Exceptional Conditions3 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 63.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Mediatek INC Mediatek Chipset
Timeline
PublishedFeb 2

Description

In Modem, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738310; Issue ID: MSV-5933.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages1 packages

▶CVEListV5mediatek_inc/mediatek_chipset19 versions+18

🔴Vulnerability Details

2
CVEList
CVE-2026-20401: In Modem, there is a possible system crash due to an uncaught exception↗2026-02-02
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GHSA
GHSA-555f-pjpv-4mjm: In Modem, there is a possible system crash due to an uncaught exception↗2026-02-02
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CVE-2026-20401 — Reachable Assertion | cvebase