CVE-2026-116732
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AI Threat Summary
CVE-2026-116732 is a moderate vulnerability with a CVSS score of 4.4 affecting the target software. Threat hunters should monitor for exploit attempts and apply vendor patches immediately.
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.
Attack Chain
Attacker scans for vulnerable versions using version banners or PoC scanners
Attacker triggers CVE-2026-116732 vulnerability with a crafted request or payload
Vulnerability exploited to perform unauthorized actions on the target system
Depending on vulnerability type, attacker achieves data access, service disruption, or code execution
MITRE ATT&CK Techniques
Indicators of Compromise
| Type | Value | Description | |
|---|---|---|---|
| user_agent | Mozilla/5.0 (compatible; exploit/1.0) |
Generic exploit scanner user agent pattern | |
| url | /api/vuln-endpoint?payload=<malicious> |
Exploit attempt against application endpoint — monitor access logs for anomalous params |
Remediation
Quick Facts
| CVE ID | CVE-2026-116732 |
| CVSS Score | 4.4 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L |
| Published | 2026-10-26 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/davea42/libdwarf-code
- https://github.com/davea42/libdwarf-code/blob/v2.3.3/src/lib…
- https://github.com/davea42/libdwarf-code/commit/71f04013ddc2…
- https://github.com/davea42/libdwarf-code/issues/336
- https://hackmd.io/@haindpwn/libdwarf-debug-addr-table-sectio…
- https://www.vulncheck.com/advisories/libdwarf-through-2.3.3-…