The evax_bfd_print_emh function in vms-alpha.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29 and earlier, allows remote attackers to cause an out of bounds heap read via a crafted vms alpha file.
Conclusion & alert: CVE-2017-12455 is rated Moderate Risk (57.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.49%). Core evidence: EPSS rose +1.16% 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 | 0.33% | 1.49% | +1.16% |
| 2 | 2025-06-19 | 0.12% | 0.33% | +0.21% |
| 3 | 2025-03-30 | — | 0.12% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-12455 not yet assigned 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-2017-12455 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2017-12455 |
suse
|
low | — | https://www.suse.com/security/cve/CVE-2017-12455/ |
ubuntu
|
low | CVE-2017-12455 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 17, ignored 1, needed 1, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2017-12455 |
| URL | Tags |
|---|---|
| https://sourceware.org/bugzilla/show_bug.cgi?id=21840 | Issue Tracking Patch Third Party Advisory |