intelligence_src_350d40f2cc69277bca
- Source-provided label
- Publisher RSS metadata
- Evidence class
- mentioned in report
- Confidence
- Not reported
- Observed
- Nov 28, 2023 00:00 UTC
- Retrieved
- Oct 13, 2026 08:35 UTC
CVE-2023-21517: Samsung Baseband LTE ESM TFT Heap Buffer Overflow
We have identified a new heap buffer overflow vulnerability in Samsung’s baseband implementation (mainly used in Exynos chipsets). The vulnerability can be exploited to achieve arbitrary code execution in the baseband runtime. The vulnerability we are disclosing in this advisory affected a wide range of Samsung devices, including phones on the newest Exynos chipsets. The June 2023 issue of the Samsung Mobile Security Bulletin contains this vulnerability as CVE-2023-21517. Vulnerability Details Layer 3 LTE NAS messages are composed of various Information Elements and the Exynos modem implementation defines dedicated parser functions for each IE type. The vulnerability is within the parser function of the Traffic Flow Template IE (3GPP TS 24.
Reference details
- Source category
- research-report
- First reported
- Nov 28, 2023 00:00 UTC
- Last reported
- Nov 28, 2023 00:00 UTC
- Catalog updated
- Oct 13, 2026 08:35 UTC
- Record ID
c67308196780a2b2018b375a43a980a60b6a6e5e652e3ac3394e0a904f4393aa
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Source observations
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Feed collection status
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1 sources: 0 stale, 0 needing attention, 0 paused, 0 unverified.
Review source update dates and status
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