CVE-2023-21646

Summary

CVE-2023-21646 denotes a Transient Denial of Service (DoS) vulnerability discovered in certain modems. The issue arises when these modems process an invalid System Information Block 1 (SIB-1). An attacker can potentially exploit this vulnerability by sending malformed SIB-1 packets, causing the modem to crash or become unresponsive, thereby disrupting network services temporarily. This vulnerability poses a threat to network availability and could potentially be exploited to launch targeted attacks, necessitating prompt patching and mitigation efforts.

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