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name: format-string-exploitation
domain: binary
triggers:
languages: [c, cpp]
severity_focus: [P1, P2, P3]
---
# format-string-exploitation
printf-family with attacker-controlled format: arbitrary read (%n$s/x), arbitrary write (%n), GOT overwrites, leaks for ASLR bypass.
## Detection checklist
- enumerate exposure
- match canonical sinks
- confirm reproducibility
- map to CWE / OWASP / CVSS
## Exploitation primitives
- reproduce in lab
- minimise the PoC
- assess blast radius
## Reporting fingerprint
- include affected version range
- include suggested fix snippet
- include CVSS 3.1 vector
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