CVE-2026-116732

libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table

4.8 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: Low

Exploit likelihood

0.13%Unchanged since Oct 27, 2026

What each source reports

CVE List Score used 4.8

libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table

Record: CVE-2026-116732
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-02

EUVDEUVD-2026-110480 4.8

Record: EUVD-2026-110480
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8mx3-4rwx-rhjv 4.8

libdwarf through 2.3.3 contains a heap out-of-bounds read vulnerability in dwarf_debug_addr_table...

Record: GHSA-8mx3-4rwx-rhjv
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-02

NVD 4.8

Record: CVE-2026-116732
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.4 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-02

OSV 4.8

libdwarf through 2.3.3 Heap Out-of-Bounds Read via dwarf_debug_addr_table

Record: CVE-2026-116732
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness: CWE-125
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-116732 4.8

Record: DEBIAN-CVE-2026-116732
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVAZL-111131 No score

CVE-2026-116732 affecting package libdwarf 0.9.2-1

Record: AZL-111131
Updated: 2026-11-05

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`libdwarf` Azure Linux:3	through 0.9.2-1	None known
`dwarfutils` Debian:12	All versions, plus listed versions 1:0.11.1-11:0.11.1-1~exp11:0.11.1-1~exp220210528-1	None known
`dwarfutils` Debian:13	All versions, plus listed versions 1:0.11.1-1	None known
`dwarfutils` Debian:14	All versions, plus listed versions 1:0.11.1-1	None known

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-116732 is a medium vulnerability (CVSS 4.8) in Davea42 Libdwarf, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.

References

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