Type Vulnerability
Changes made to the security updates links and information.
Microsoft
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network
CVE-2026-120796
What this means
This is rated medium severity (5.3 out of 10). There is no confirmed exploitation of it yet.
Full vendor description
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Scoring and exploitation
5.3/ 10
CVSS 3.1 base scoreMedium
Exploitable over the network without any account, and no one has to click or open anything. Low impact on availability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionNoneUI:N
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityNoneC:N
IntegrityNoneI:N
AvailabilityLowA:L
- Not reported
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-407
References
1 link from the CVE record, grouped by site.
msrc.microsoft.com1 link