CVE-2025-36855
Last modified
CVE-2025-36855 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll due to buffer over-read. Per CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This issue affects EOL ASP.NET 6.0.0 <= 6.0.36 as represented in this CVE, as well as 8.0.0 <= 8.0.11 & <= 9.0.0 as represented in CVE-2025-21176. Additionally, if you've deployed self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed. 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.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
A vulnerability ( CVE-2025-21176 https://www.cve.org/CVERecord ) exists in DiaSymReader.dll due to buffer over-read. Per CWE-126: Buffer Over-read https://cwe.mitre.org/data/definitions/126.html , Buffer Over-read is when a product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This issue affects EOL ASP.NET 6.0.0 <= 6.0.36 as represented in this CVE, as well as 8.0.0 <= 8.0.11 & <= 9.0.0 as represented in CVE-2025-21176. Additionally, if you've deployed self-contained applications https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed. 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.
Metrics
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-36855?
How severe is CVE-2025-36855?
How do I fix CVE-2025-36855?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-36845An issue was discovered in Eveo URVE Web Manager 27.02.2025.…8.6
- CVE-2025-36846An issue was discovered in Eveo URVE Web Manager 27.02.2025.…9.8
- CVE-2025-3685A vulnerability classified as critical has been found in cod…8.8
- CVE-2025-36852A critical security vulnerability exists in remote cache ext…9.4
- CVE-2025-36853A vulnerability (CVE-2025-21172) exists in msdia140.dll due …7.5
- CVE-2025-36854A vulnerability ( CVE-2024-38229 https://www.cve.org/CVEReco…8.1
- CVE-2025-36857Rapid7 Appspider Pro versions below 7.5.021, suffer from a b…3.3
- CVE-2025-3686A vulnerability classified as problematic was found in misst…5.3
- CVE-2025-3687A vulnerability, which was classified as problematic, has be…5.3
- CVE-2025-3688A vulnerability, which was classified as problematic, was fo…4.8
- CVE-2025-36887In wl_cfgscan_update_v3_schedscan_results() of wl_cfgscan.c…7.8
- CVE-2025-36889In onCreateTasks of CameraActivity.java, there is a possible…5.5
Are you affected by CVE-2025-36855?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST