A heap-based buffer overflow in the libexe_io_handle_read_coff_optional_header function of libyal libexe before 20181128. NOTE: the vendor has disputed this as described in libyal/libexe issue 1 on GitHub
CVSS v4.0 Metrics
Exploitability
Attack VectorLocal
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionActive
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityLow
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 0.2 → 0.9 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.2 |
Affected Software
| Vendor | Product | Version |
|---|
| libexe_project | libexe | < 20181128 |
Published: 2021-08-19
