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Add confidence since people ask about this too #1904

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merged 3 commits into from
Jan 17, 2025
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Add confidence since people ask about this too #1904

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Add confidence since people ask about this too
armchairlinguist Jan 14, 2025
f345010
Incorporate other half of TW changes
armchairlinguist Jan 17, 2025
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First half TW changes
armchairlinguist Jan 17, 2025
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10 changes: 8 additions & 2 deletions docs/kb/rules/understand-severities.md
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@@ -1,5 +1,5 @@
---
description: Understand how rule severity is determined.
description: Understand how rule severity and confidence is determined.
tags:
- Rules
- Semgrep Registry
Expand All @@ -23,4 +23,10 @@ In addition to severity, Supply Chain displays an [Exploit prediction scoring sy

* <b>High</b>: 50 - 100%
* <b>Medium</b>: 10 - &#60;50%
* <b>Low</b>: &#60;10%
* <b>Low</b>: &#60;10%

# How are confidence levels assigned to rules?

Confidence level is also set by the rule author, but it is intended to describe the rule, not the vulnerability the rule catches.

The confidence level reflects how confident the rule writer is that the rule patterns capture the vulnerability without generating too many false positive findings. The rule author manually sets the appropriate confidence level. Rules that have more targeted and detailed patterns, such as advanced taint mode rules, typically are given `HIGH` confidence.
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