PatchTheCVECVE-2023-25303: ATLauncher <= 3.4.26.0 is vulnerable to Directory Traversal
CVE-2023-25303 is a high-severity flaw (CVSS 7.1) affecting atlauncher. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ATLauncher <= 3.4.26.0 is vulnerable to Directory Traversal. A mrpack file can be maliciously crafted to create arbitrary files outside of the installation directory.
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.1 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.6% (top 54%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2023-04-04 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-25303?
atlauncher: upgrade to 3.4.27.0. Exact commands for each OS are on this page.
Is CVE-2023-25303 being exploited?
CVE-2023-25303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-25303 affect?
CVE-2023-25303 affects atlauncher. Severity is high (CVSS 7.1). ATLauncher <= 3.4.26.0 is vulnerable to Directory Traversal. A mrpack file can be maliciously crafted to create arbitrary files outside of the installation directory.
How urgent is CVE-2023-25303?
Priority 41/100. High severity; Public exploit reference