Android: Remote denial of service via memory exhaustion in message handling
Summary
A flaw in the RespondReceivedMessage function of MtsMessageController.cpp allows an attacker to exhaust device memory through an undrained message queue, caused by a type confusion. A successful attack leads to a denial of service on the affected device. No additional privileges or user interaction are required, according to the CVE description.
Affected
- Google Android (affected component given as Android kernel in the CVE record; exact component unclear)
- Affected versions: Unknown.
Fixed in
- Unknown. The Pixel Update Bulletin November 2026 states that patch level 2026-11-05 or later addresses all issues in the bulletin, but the excerpt reviewed does not list CVE-2026-59632.
Workaround
- Unknown. No workaround is documented in the sources reviewed.
Exploitation
- No evidence of exploitation in the wild found. CISA SSVC assessment: Exploitation none, Automatable yes, Technical Impact partial.
- No public proof of concept confirmed; one aggregator reports none, with low confidence.
Our recommendation
- Check the Pixel Update Bulletin November 2026 and NVD for updates confirming which patch level covers this CVE.
- Install the 2026-11-05 or later security patch level on managed Android and Pixel devices and verify it under Settings > About phone.
- Re-check NVD after analysis is complete and confirm the CVSS score and affected component.
- Monitor for vendor updates and prioritise devices that are reachable from untrusted networks.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Pixel Update Bulletin November 2026 source.android.com
- CVE Record CVE-2026-59632 www.cve.org
- Strix CVE-2026-59632 www.strix.ai
- ThreatInt CVE-2026-59632 cve.threatint.com
- 9to5Google: November 2026 Pixel update 9to5google.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 04:53.
Original description (NVD)
In RespondReceivedMessage of MtsMessageController.cpp, there is a possible way to trigger memory exhaustion via an undrained message queue due to a type confusion. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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