intelligence_src_350d40f2cc69277bca
- Source-provided label
- Publisher RSS metadata
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Dec 07, 2023 00:00 UTC
- Retrieved
- Oct 13, 2026 08:35 UTC
Full Chain Baseband Exploits, Part 3
Additional posts in this series: Part 1 Part 2 In my Basebanheimer talk at Hardwear.io, I explained a method for exploiting the Mediatek Baseband Pivot vulnerability CVE-2022-21765 for arbitrary code execution in the Linux kernel on Mediatek’s older (“Helio”) chipsets, which use 32-bit kernels. I also mentioned that using previous ideas, the vulnerability could theoretically be exploited on Mediatek’s newest chipset family (Dimensity, which uses 64-bit kernels) as well. After the conference, with my college Lorant Szabo we have completed this exercise. The vulnerabilities: CVE-2022-21765 and CVE-2022-21769 To recap, the vulnerabilities provide an OOB read/write in the Linux kernel driver that implements the Application (AP) and Cellular Processor (CP) interface, which Mediatek calls the CCCI driver.
Reference details
- Source category
- research-report
- First reported
- Dec 07, 2023 00:00 UTC
- Last reported
- Dec 07, 2023 00:00 UTC
- Catalog updated
- Oct 13, 2026 08:35 UTC
- Record ID
da787f03b9ce885021e36386498c168b8a492ec5c15547fb0ac1ae9aebf2c1bd
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