CVE-2026-116732: davea42 libdwarf · Out-of-bounds Read
Affects davea42 libdwarfSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 22:16 UTC
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 26 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| davea42libdwarf | Affected
| Fixed in– |
GitHublibdwarfpkg:github/libdwarfOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, avoid processing untrusted object files with vulnerable versions of libdwarf.
Description
libdwarf versions up to 2.3.3 contain a heap out-of-bounds read vulnerability in the dwarf_debug_addr_table() function. This flaw occurs because the function omits the table starting offset when validating the .debug_addr unit length. An attacker can exploit this by supplying a crafted object file with a non-zero offset table, causing dwarf_debug_addr_by_index() to read beyond the allocated heap buffer. This can lead to disclosure of adjacent heap memory or cause a crash in programs using libdwarf.
References
- github.com/davea42/libdwarf-code/issues/336 (opens in a new tab)
- github.com/davea42/libdwarf-code (opens in a new tab)
- github.com/davea42/libdwarf-code/commit/71f04013ddc2a3c88b9e25a4162ee2824741b593 (opens in a new tab)
- github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib/libdwarf/dwarf_debugaddr.c (opens in a new tab)
- hackmd.io/@haindpwn/libdwarf-debug-addr-table-section-offset-oob-read (opens in a new tab)
- vulncheck.com/advisories/libdwarf-through-2.3.3-heap-out-of-bounds-read-via-dwarf-debug-addr-table (opens in a new tab)