# CVE-2026-33958: Samsung semiconductor RRC Reconfiguration message out-of-bounds denial-of-service

Source: https://junglewise.ai/threats/cve-2026-33958-processing-a-malformed-rrc-reconfiguration-message-leads-to-an  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-05. Updated: 2026-11-05  
License: CC BY 4.0 with a link back

CVE-2026-33958 · Severity: info · Published 2026-11-05

A malformed RRC (Radio Resource Control) Reconfiguration message can trigger an out-of-bounds memory access in Samsung semiconductor products, causing a denial-of-service condition that crashes the affected system. This affects wireless communication processing in mobile and networking chips where RRC messages are used for radio resource management.

Technologies: [Samsung Semiconductor Products](https://junglewise.ai/threats/technologies/semiconductor-products). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2026-33958 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33958 being exploited in the wild.

**How severe is CVE-2026-33958?** Informational severity, published 5 November 2026.

**Which products and versions are affected?** Samsung Semiconductor products.

**Is there a fix for CVE-2026-33958?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-33958 attacked?** It is attacked over the network, in device firmware.

**Am I affected by CVE-2026-33958?** Check whether you run Samsung Semiconductor Products. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An out-of-bounds memory access vulnerability exists in the RRC Reconfiguration message handler, triggered by processing malformed protocol messages. The vulnerability likely requires network proximity to send crafted wireless protocol messages to the target device, and results in a crash or system instability denying service to legitimate users.

## Affected products

- Samsung Semiconductor products

## Timeline

- 2026-11-05: disclosed

## References

- [https://semiconductor.samsung.com/support/quality-support/product-security-updates/](https://semiconductor.samsung.com/support/quality-support/product-security-updates/)

## Related threats

- [Samsung semiconductor improper message handling before AS security activation](https://junglewise.ai/threats/cve-2026-48186-improper-handling-of-messages-before-as-security-activation-can)
- [Samsung semiconductor memory corruption in message validation](https://junglewise.ai/threats/cve-2026-48176-a-memory-corruption-vulnerability-caused-by-improper-validation)