Threats Tagged 'cve-2026-12520'
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Threats Tagged 'cve-2026-12520'
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CVE-2026-12520: memory-safety in zephyrproject zephyrCVE-2026-12520 0 CVE-2026-12520 is a memory-safety vulnerability in the Zephyr project's HL7800 cellular modem driver affecting versions 2.4.0 and later up to but not including 4.4.2. The flaw involves improper handling of AT response parsing that can cause a single-byte out-of-bounds write or a full stack buffer overflow in kernel context. An attacker controlling modem responses, such as via a rogue base station or compromised modem, can trigger this by sending oversized AT response lines. The most severe case allows code execution in kernel context, while lesser cases cause reliable crashes. The vulnerability has a CVSS score of 6.4 (medium severity). Join the discussion | CVE Database V5 | 08/18/2026, 19:41:07 UTC Added: 08/18/2026, 19:50:11 UTC |
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