CVE-2026-116732
libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table
davea42 libdwarf
CVSS
4.8MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table() that omits the table starting offset when validating .debug_addr unit length. Attackers can supply a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read past the heap buffer, disclosing adjacent heap bytes or crashing consumers.
Text from CVE List
Affected versions 1
- libdwarfaffected: all versions through 2.3.3CVE List
References 6
- github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee2824741b593Fixvia CVE List
- hackmd.io/@haindpwn/libdwarf-debug-addr-table-section-offset-oob-readAdvisoryvia CVE List
- vulncheck.com/advisories/libdwarf-through-2.3.3-heap-out-of-bounds-read-via-dwarf-debug-addr-tableAdvisoryvia CVE List
- github.com/davea42/libdwarf-code/issues/336Referencevia CVE List
- github.com/davea42/libdwarf-codeReferencevia CVE List
- github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debugaddr.c#L175-L216Referencevia CVE List