CVE-2026-102869
HIGH 8.8Access of resource using incompatible type ('type confusion') in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
Severe if exploited (CVSS 8.8), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.7%chance of exploitation in 30 days · 54th percentile
Impact if exploited
8.8CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ⚠User interaction: A user must take an action (click / open a file)
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-102869/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-102869/poc.json
Affected
Vendors Microsoft
Products Microsoft .Net Framework 3.5 And 4.6.2/4.7/4.7.1/4.7.2 Microsoft .Net Framework 3.5 And 4.7.2 Microsoft .Net Framework 3.5 And 4.8 Microsoft .Net Framework 3.5 And 4.8.1 Microsoft .Net Framework 4.6.2/4.7/4.7.1/4.7.2 Microsoft .Net Framework 4.8 Microsoft .Net Framework 4.8.1 Microsoft Visual Studio 2022 Version 17.14 Microsoft Visual Studio 2026 Version 18.10
Weakness (CWE)
- CWE-843: : Access of Resource Using Incompatible Type ('Type Confusion')
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
All CVSS metrics
- HIGH 8.8 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - HIGH 8.8 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H