CVE-2023-50804 — An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exyn

An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly

01What is this vulnerability?

An issue was discovered in Samsung Mobile Processor, and Modem Exynos 9820, Exynos 9825, Exynos 980, Exynos 990, Exynos 850, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, Exynos 1380, Exynos 1330, Exynos Modem 5123, Exynos Modem 5300. The baseband software does not properly check format types specified by the NAS (Non-Access-Stratum) module. This can lead to bypass of authentication.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-06-05T00:00:00.000Z
• Last modified: 2025-03-18T19:54:12.026Z

09References

• semiconductor.samsung.com — https://semiconductor.samsung.com/support/quality-support/product-security-updat…