VYPR
Vypr IntelligenceAI-generatedSep 8, 2026· 25 CVEs

Android-x86: 25 Vulnerabilities Disclosed Together, Including Critical RCE Flaws

Android-x86 faces a critical security event with 25 vulnerabilities disclosed on September 8, 2026, including RCE and privilege escalation flaws.

Key findings

  • 25 vulnerabilities disclosed simultaneously for Android-x86 on September 8, 2026.
  • Critical flaws (CVSS 9.8) like CVE-2026-58822 and CVE-2026-49921 allow for remote code execution.
  • Numerous High-severity vulnerabilities enable local privilege escalation through memory corruption and permission issues.
  • Vulnerabilities include heap overflows, integer overflows, and missing permission checks across various components.
  • Patches are available under the September 2026 Android Security Bulletin (patch levels 2026-09-01 and 2026-09-05).

On September 8, 2026, a significant batch of 25 vulnerabilities was disclosed for Android-x86, impacting various components and functions within the Android operating system. These vulnerabilities, all disclosed on the same day, range in severity from High to Critical, with several allowing for privilege escalation and remote code execution without user interaction. The disclosures highlight potential weaknesses in memory management, permission checks, and input validation across multiple modules.

A notable cluster of vulnerabilities relates to memory safety issues. CVE-2026-58822 and CVE-2026-49921, both rated Critical with a CVSSv3 score of 9.8, stem from heap buffer overflows and improper casting, respectively, potentially leading to remote code execution. Additionally, several High-severity CVEs, including CVE-2026-58823, CVE-2026-58820, CVE-2026-55294, CVE-2026-55285, CVE-2026-49932, CVE-2026-49927, CVE-2026-49882, CVE-2026-49879, CVE-2026-45531, all involve memory safety issues such as out-of-bounds reads/writes or integer overflows, leading to local privilege escalation.

Several vulnerabilities specifically target permission checks and input validation. CVE-2026-58874 and CVE-2026-45521, both High severity, are due to missing permission checks in SmsController.java and AppFuseBridge.java, respectively, allowing for local privilege escalation and information disclosure. CVE-2026-55273, also High severity, involves improper input validation in AnnotationProcessor.cpp, posing a supply chain risk and enabling local privilege escalation. Furthermore, CVE-2026-49887 presents a risk of unauthorized app updates due to a permissions bypass in InstallRepository.kt.

The batch also includes vulnerabilities that could lead to denial of service. CVE-2026-55256 and CVE-2026-45527, both disclosed on the same day, are related to improper input validation and integer overflows, respectively, which could result in remote denial of service.

The disclosures align with the September 2026 Android Security Bulletin, which addressed several critical vulnerabilities enabling RCE attacks. While the provided information does not detail specific threat actors or campaigns, the nature of these vulnerabilities, particularly those allowing for RCE without user interaction, underscores the importance of timely patching for Android-x86 users. The security patch levels mentioned are 2026-09-01 and 2026-09-05, indicating that these fixes were integrated into the system by these dates. Users are advised to update to the latest available security patch provided by their device manufacturer to mitigate these risks.

This extensive set of vulnerabilities, disclosed simultaneously, emphasizes the need for continuous vigilance and prompt security updates within the Android-x86 ecosystem. The focus on memory safety, privilege escalation, and RCE indicates a broad attack surface that could be exploited if not addressed. Users should prioritize applying the latest security patches to protect their devices from potential compromise.

The vulnerabilities disclosed on September 8, 2026, affect multiple components of Android-x86, with a significant number related to memory safety and privilege escalation. Critical flaws like CVE-2026-58822 and CVE-2026-49921 allow for remote code execution, while numerous High-severity issues enable local privilege escalation through various means, including heap overflows, integer overflows, and missing permission checks. Additionally, denial-of-service vulnerabilities were also part of this disclosure batch. These issues were addressed in the September 2026 Android Security Bulletin, with patch levels dated September 1 and September 5, 2026.

Key vulnerabilities include:

The Android-x86 project released security patches on or before September 8, 2026, addressing these vulnerabilities. Users are strongly encouraged to apply the latest available updates to secure their systems. The security patch levels for this update are 2026-09-01 and 2026-09-05.

The batch of 25 vulnerabilities disclosed on September 8, 2026, for Android-x86 presents a critical security concern, with multiple flaws enabling remote code execution and privilege escalation. The vulnerabilities stem from various causes, including heap buffer overflows, integer overflows, improper casting, missing bounds checks, and permission bypasses. The critical CVEs CVE-2026-58822 and CVE-2026-49921 are particularly concerning due to their potential for remote code execution. Numerous other High-severity CVEs, such as CVE-2026-58874, CVE-2026-58823, and CVE-2026-49932, allow for local privilege escalation. Denial-of-service vulnerabilities were also identified. These issues were addressed in the September 2026 Android Security Bulletin, with patches available under security patch levels 2026-09-01 and 2026-09-05. Users should ensure their Android-x86 installations are updated to the latest version to protect against these widespread security risks.

The Android-x86 project experienced a significant security event on September 8, 2026, with the simultaneous disclosure of 25 vulnerabilities. These flaws span critical and high-severity ratings, with many allowing for remote code execution (RCE) and privilege escalation. Key vulnerabilities include heap buffer overflows (e.g., CVE-2026-58822, CVE-2026-49921), integer overflows (e.g., CVE-2026-58820, CVE-2026-49918), and missing permission checks (e.g., CVE-2026-58874, CVE-2026-45521). The disclosures are part of the September 2026 Android Security Bulletin, with patches corresponding to security patch levels 2026-09-01 and 2026-09-05. Users are urged to apply these updates promptly.

This batch of 25 vulnerabilities disclosed on September 8, 2026, for Android-x86 includes critical flaws enabling remote code execution and numerous high-severity vulnerabilities leading to privilege escalation. The issues are rooted in memory safety problems like heap overflows and integer overflows, as well as improper permission handling and input validation. Notable CVEs include CVE-2026-58822 and CVE-2026-49921 for RCE, and CVE-2026-58874 and CVE-2026-45521 for privilege escalation due to missing permission checks. These vulnerabilities were addressed in the September 2026 Android Security Bulletin, with patches available under security patch levels 2026-09-01 and 2026-09-05. Prompt application of these updates is crucial for users.

AI-written article. Grounded in 25 CVE records listed below.