Full Report
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed two vulnerabilities each in Asus Armoury Crate and Adobe Acrobat products.
Analysis Summary
# Vulnerability: Asus Armoury Crate Buffer Overflow and Authorization Bypass, Adobe Acrobat Reader R/UAF
## CVE Details
- CVE ID: CVE-2025-1533, CVE-2025-3464, CVE-2025-43578, CVE-2025-43576
- CVSS Score: Not specified in detail (Severity generally implied by impact)
- CWE: Stack-based buffer overflow (CVE-2025-1533), Insufficient Authorization (CVE-2025-3464), Out-of-bounds Read (CVE-2025-43578), Use-After-Free (CVE-2025-43576)
## Affected Systems
- Products: Asus Armoury Crate, Adobe Acrobat Reader
- Versions:
- Asus Armoury Crate: Version 5.9.13.0 (for kernel driver issues)
- Adobe Acrobat Reader: Version 2025.001.20435
- Configurations: N/A/Applicable for all given configurations are implied by software environment.
## Vulnerability Description
The summary details four vulnerabilities across two products:
1. **CVE-2025-1533 (Asus Armoury Crate - Stack-based Buffer Overflow):** A stack-based buffer overflow exists in the `AsIO3.sys` kernel driver. An unprivileged attacker can trigger this via a specially crafted I/O request packet (IRP) from user mode.
2. **CVE-2025-3464 (Asus Armoury Crate - Authorization Bypass):** An authorization bypass exists in the `AsIO3.sys` functionality. An attacker can create a hard link to exploit this flaw.
3. **CVE-2025-43578 (Adobe Acrobat Reader - Out-of-bounds Read):** An out-of-bounds read vulnerability in the Font functionality. Triggered by a specially crafted font file embedded in a PDF, leading to potential information disclosure.
4. **CVE-2025-43576 (Adobe Acrobat Reader - Use-After-Free):** A use-after-free vulnerability in the annotation object processing functionality. Triggered by a malicious PDF containing specially crafted Javascript, potentially leading to memory corruption and arbitrary code execution.
## Exploitation
- Status: Patched by vendors (No explicit "exploited in the wild" status given, but PoCs are implied by disclosure process).
- Complexity:
- CVE-2025-1533: Low (Unprivileged local user)
- CVE-2025-3464: Likely Low/Medium (Requires file system manipulation)
- CVEs for Adobe: Medium (Requires user opening a malicious PDF)
- Attack Vector: Local (Asus issues), Network/Local (Adobe issues via file transmission/opening)
## Impact
- Confidentiality:
- CVE-2025-1533/3464: Potentially elevated privileges, leading to high impact.
- CVE-2025-43578: Information Disclosure.
- CVE-2025-43576: Potential for sensitive data exposure through memory corruption.
- Integrity: High (Arbitrary code execution possible in CVE-2025-43576; privilege escalation possible in CVE-2025-1533).
- Availability: Potential denial of service via system crash or instability due to memory corruption/overflows.
## Remediation
### Patches
- Vendors (Asus and Adobe) have released patches for all associated vulnerabilities. The blog implies users should consult vendor advisories for specific patch versions addressing issue identifiers TALOS-2025-2144, TALOS-2025-2150, TALOS-2025-2159, and TALOS-2025-2170.
### Workarounds
- No specific workarounds were detailed in this summary, other than general advice to update systems immediately.
## Detection
- Detection coverage is available via Snort rule sets. Users should download the latest rules from Snort.org.
- Indicators of Compromise (IOCs) are not itemized but are covered by the vendor-specific patches and Talos intelligence signatures.
## References
- Vendor Advisories: Patched by respective vendors adhering to disclosure timelines.
- Relevant links - defanged:
- Cisco Talos Vulnerability Reports: hxxps://talosintelligence.com/vulnerability_reports/
- Deep dive on Asus issues: hxxps://blog.talosintelligence.com/decrement-by-one-to-rule-them-all/
- Snort Official Site: hxxps://snort.org/