Use-after-free vulnerability in the phar_rename_archive function in phar_object.c in PHP before 5.5.22 and 5.6.x before 5.6.6 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger an attempted renaming of a Phar archive to the name of an existing file.
Conclusion & alert: CVE-2015-2301 is rated High Exploit Risk (78.6/100): CVSS High severity, with high exploitation likelihood (EPSS 14.67%, 96th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| — | 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 | 2026-07-11 | 14.77% | 14.67% | -0.10% |
| 2 | 2026-06-27 | 14.39% | 14.77% | +0.38% |
| 3 | 2026-06-15 | — | 14.39% | — |
Full EPSS history (58 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2015-2301: 1 GLSA(s) (201606-10), 1 atom(s) (dev-lang/php); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-2301 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2015-2301 |
ubuntu
|
medium | CVE-2015-2301 medium priority: Ubuntu including 1 source packages (php5), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 5. | https://ubuntu.com/security/CVE-2015-2301 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| canonical | ubuntu_linux | 10.04 | cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 14.10 | cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
| php | php | >= 5.4.0, < 5.4.40 | 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:*:*:*:*:*:*:*:* |
| apple | mac_os_x | <= 10.10.4 | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |