CVE-2023-32842
Published: 04 December 2023
Summary
CVE-2023-32842 is a high-severity Reachable Assertion (CWE-617) vulnerability in Mediatek Nr15. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 9.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-32842 is a vulnerability in MediaTek 5G Modem components stemming from improper error handling, tracked under CWE-617. It allows a system crash when the modem processes malformed RRC messages, producing a CVSS 3.1 score of 7.5 with network attack vector, low complexity, and high availability impact.
An unauthenticated remote attacker can trigger the flaw by sending crafted RRC messages over the air, resulting in denial of service without any user interaction or elevated privileges. The issue affects devices incorporating the vulnerable 5G modem firmware and requires no additional execution rights on the target.
MediaTek's December 2023 product security bulletin lists the issue with Patch ID MOLY01130256 and Issue ID MOLY01130256 (MSV-848), directing customers to apply the corresponding modem firmware updates. The EPSS score remains flat at 0.0539 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-37063
Vulnerability details
In 5G Modem, there is a possible system crash due to improper error handling. This could lead to remote denial of service when receiving malformed RRC messages, with no additional execution privileges needed. User interaction is not needed for exploitation.…
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Patch ID: MOLY01130256; Issue ID: MOLY01130256 (MSV-848).
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.