Buffer overflow in Microsoft Microsoft.netcore.app.runtime.linux-Arm
CVE-2025-36853
A vulnerability (CVE-2025-21172) exists in msdia140.dll due to integer overflow and heap-based overflow. Per CWE-122: Heap-based Buffer Overflow, a heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Per CWE-190: Integer Overflow or Wraparound, is when a product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. NOTE: This CVE affects only End Of Life (EOL) software components. The vendor, Microsoft, has indicated there will be no future updates nor support provided upon inquiry.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Microsoft Microsoft.netcore.app.runtime.linux-Arm — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.linux-Arm64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.linux-Musl-Arm — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.linux-Musl-Arm64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.linux-Musl-X64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.linux-X64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.osx-Arm64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.osx-X64 — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.win-Arm — versions >=6.0.0
- Microsoft Microsoft.netcore.app.runtime.win-Arm64 — versions >=6.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 36c7be3b-2937-45df-85ea-ca7133ea542c (third-party-advisory)
- 36c7be3b-2937-45df-85ea-ca7133ea542c (vendor-advisory)
Frequently asked questions
- What is CVE-2025-36853?
- CVE-2025-36853 is a high-severity vulnerability in Microsoft Microsoft.netcore.app.runtime.linux-Arm, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-09-08.
- How severe is CVE-2025-36853?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2025-36853 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.