PatchTheCVECVE-2026-118147: Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a ne
CVE-2026-118147 is a high-severity flaw (CVSS 7.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.4 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | n/a |
| CISA exploited list | No |
| Weakness | CWE-295 |
| Published | 2026-10-31 |
| Last modified | 2026-10-31 |
Last updated 2026-10-31 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Official advisories
- Microsoft MSRC Update Guide: CVE-2026-118147 Visual Studio Spoofing Vulnerability 2026-10-30
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-118147?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-118147 being exploited?
CVE-2026-118147 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-118147 affect?
CVE-2026-118147 affects affected software. Severity is high (CVSS 7.4). Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.
How urgent is CVE-2026-118147?
Priority 36/100. High severity; Remotely exploitable, no login, no user action; On your watchlist