scan_unit_for_symbols in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file.
Conclusion & alert: CVE-2017-14940 is rated Moderate Risk (50.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.94%). Core evidence: EPSS rose +1.51% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.43% | 1.94% | +1.51% |
| 2 | 2025-11-28 | 0.45% | 0.43% | -0.03% |
| 3 | 2025-06-19 | — | 0.45% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.0 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2017-14940 low priority: Debian including 1 source packages (binutils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-14940 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2017-14940 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2017-14940/ |
ubuntu
|
low | CVE-2017-14940 low priority: Ubuntu including 1 source packages (binutils), 21 status rows across 21 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial, zesty): not-affected 16, ignored 2, released 2, needed 1. | https://ubuntu.com/security/CVE-2017-14940 |
| URL | Tags |
|---|---|
| https://blogs.gentoo.org/ago/2017/09/26/binutils-null-pointer-dereference-in-scan_unit_for_symbols-dwarf2-c/ | Patch Third Party Advisory VDB Entry |
| https://sourceware.org/bugzilla/show_bug.cgi?id=22166 | Issue Tracking Patch Third Party Advisory |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=0d76029f92182c3682d8be2c833d45bc9a2068fe |