Open-source ARJ archiver 3.10.22 does not properly remove leading slashes from paths, which allows remote attackers to conduct absolute path traversal attacks and write to arbitrary files via multiple leading slashes in a path in an ARJ archive.
Conclusion & alert: CVE-2015-0557 is rated High Exploit Risk (70/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.37%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.27% 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 |
|---|---|---|---|---|
| — | 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 | 2.10% | 3.37% | +1.27% |
| 2 | 2025-05-04 | 1.69% | 2.10% | +0.41% |
| 3 | 2025-03-30 | — | 1.69% | — |
Full EPSS history (8 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-2015-0557 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-2015-0557 |
gentoo
|
normal | CVE-2015-0557: 1 GLSA(s) (201612-15), 1 atom(s) (app-arch/arj); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0557 |
ubuntu
|
medium | CVE-2015-0557 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-2015-0557 |
| 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:*:*:*:*:*:*:* |