Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka "GHOST."
Conclusion & alert: CVE-2015-0235 is rated High Exploit Risk (94.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 94.86%, 100th percentile). Core evidence: 14 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +9.99% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 36421 | exploit_db | edb | 2015-03-18 | Exploit-DB ↗ |
| 35951 | exploit_db | edb | 2015-01-29 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 84.87% | 94.86% | +9.99% |
| 2 | 2026-05-21 | 86.66% | 84.87% | -1.79% |
| 3 | 2026-04-23 | — | 86.66% | — |
Full EPSS history (48 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
high | CVE-2015-0235 high priority: Debian including 1 source packages (glibc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-0235 |
gentoo
|
normal | CVE-2015-0235: 1 GLSA(s) (201503-04), 1 atom(s) (sys-libs/glibc); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0235 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2015-0235 |
suse
|
critical | CVE-2015-0235 severity critical: SUSE including 496 source package names (apache2-mod_php5-5.6.28-1.1, apache2-mod_php7-7.0.14-1.4, …), 581 product×package rows across 30 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 11 SP3, … (30 product lines)): Fixed 545, Known Not Affected 36. | https://www.suse.com/security/cve/CVE-2015-0235/ |
ubuntu
|
high | CVE-2015-0235 high priority: Ubuntu including 2 source packages (eglibc, glibc), 10 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): DNE 4, not-affected 4, released 2. | https://ubuntu.com/security/CVE-2015-0235 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| gnu | glibc | >= 2.0, < 2.18 | cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* |
| oracle | communications_application_session_controller | < 3.7.1 | cpe:2.3:a:oracle:communications_application_session_controller:*:*:*:*:*:*:*:* |
| oracle | communications_eagle_application_processor | 16.0 | cpe:2.3:a:oracle:communications_eagle_application_processor:16.0:*:*:*:*:*:*:* |
| oracle | communications_eagle_lnp_application_processor | 10.0 | cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.0:*:*:*:*:*:*:* |
| oracle | communications_lsms | 13.1 | cpe:2.3:a:oracle:communications_lsms:13.1:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 9.7.3 | cpe:2.3:a:oracle:communications_policy_management:9.7.3:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 9.9.1 | cpe:2.3:a:oracle:communications_policy_management:9.9.1:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 10.4.1 | cpe:2.3:a:oracle:communications_policy_management:10.4.1:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 11.5 | cpe:2.3:a:oracle:communications_policy_management:11.5:*:*:*:*:*:*:* |
| oracle | communications_policy_management | 12.1.1 | cpe:2.3:a:oracle:communications_policy_management:12.1.1:*:*:*:*:*:*:* |
| oracle | communications_session_border_controller | < 7.2.0 | cpe:2.3:a:oracle:communications_session_border_controller:*:*:*:*:*:*:*:* |
| oracle | communications_session_border_controller | 7.2.0 | cpe:2.3:a:oracle:communications_session_border_controller:7.2.0:-:*:*:*:*:*:* |
| oracle | communications_session_border_controller | 8.0.0 | cpe:2.3:a:oracle:communications_session_border_controller:8.0.0:*:*:*:*:*:*:* |
| oracle | communications_user_data_repository | >= 10.0.0, <= 10.0.1 | cpe:2.3:a:oracle:communications_user_data_repository:*:*:*:*:*:*:*:* |
| oracle | communications_webrtc_session_controller | 7.0 | cpe:2.3:a:oracle:communications_webrtc_session_controller:7.0:*:*:*:*:*:*:* |
| oracle | communications_webrtc_session_controller | 7.1 | cpe:2.3:a:oracle:communications_webrtc_session_controller:7.1:*:*:*:*:*:*:* |
| oracle | communications_webrtc_session_controller | 7.2 | cpe:2.3:a:oracle:communications_webrtc_session_controller:7.2:*:*:*:*:*:*:* |
| oracle | exalogic_infrastructure | 1.0 | cpe:2.3:a:oracle:exalogic_infrastructure:1.0:*:*:*:*:*:*:* |
| oracle | exalogic_infrastructure | 2.0 | cpe:2.3:a:oracle:exalogic_infrastructure:2.0:*:*:*:*:*:*:* |
| oracle | vm_virtualbox | < 5.1.24 | cpe:2.3:a:oracle:vm_virtualbox:*:*:*:*:*:*:*:* |
| oracle | linux | 5 | cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:* |
| oracle | linux | 7 | cpe:2.3:o:oracle:linux:7:0:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| redhat | virtualization | 6.0 | cpe:2.3:a:redhat:virtualization:6.0:*:*:*:*:*:*:* |
| apple | mac_os_x | < 10.11.1 | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* |
| ibm | pureapplication_system | 1.0.0.0 | cpe:2.3:a:ibm:pureapplication_system:1.0.0.0:*:*:*:*:*:*:* |
| ibm | pureapplication_system | 1.1.0.0 | cpe:2.3:a:ibm:pureapplication_system:1.1.0.0:*:*:*:*:*:*:* |
| ibm | pureapplication_system | 2.0.0.0 | cpe:2.3:a:ibm:pureapplication_system:2.0.0.0:*:*:*:*:*:*:* |
| ibm | security_access_manager_for_enterprise_single_sign-on | 8.2 | cpe:2.3:a:ibm:security_access_manager_for_enterprise_single_sign-on:8.2:*:*:*:*:*:*:* |
| php | php | >= 5.4.0, < 5.4.38 | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
| php | php | >= 5.5.0, < 5.5.22 | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
| php | php | >= 5.6.0, < 5.6.6 | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |