Open-source ARJ archiver 3.10.22 allows remote attackers to conduct directory traversal attacks via a symlink attack in an ARJ archive.
Conclusion & alert: CVE-2015-0556 is rated High Exploit Risk (66.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.55%). Core evidence: 3 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 ↗ | |
| — | 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 | 2026-02-21 | 2.09% | 1.55% | -0.54% |
| 2 | 2025-05-04 | 1.68% | 2.09% | +0.41% |
| 3 | 2025-03-30 | — | 1.68% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2015-0556 low priority: Debian including 1 source packages (arj), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-0556 |
gentoo
|
normal | CVE-2015-0556: 1 GLSA(s) (201612-15), 1 atom(s) (app-arch/arj); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0556 |
ubuntu
|
medium | CVE-2015-0556 medium priority: Ubuntu including 1 source packages (arj), 14 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 8, ignored 3, released 2, DNE 1. | https://ubuntu.com/security/CVE-2015-0556 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| arj_software | arj_archiver | <= 3.10.22 | cpe:2.3:a:arj_software:arj_archiver:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 20 | cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* |
| fedoraproject | fedora | 21 | cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* |
| fedoraproject | fedora | 22 | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* |