Vulnerability · Published Apr 9, 2026 · Assigned by mitre
CVE-2026-30479
Critical 9.1
In plain English
A critical-severity code injection in the mapserver package (Ubuntu). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.3%top 74.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A Dynamic-link Library Injection vulnerability in OSGeo Project MapServer before v8.0 allows attackers to execute arbitrary code via a crafted executable.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | mapserver | no fix listed | UBUNTU-CVE-2026-30479 |
| Ubuntu:24.04:LTS | mapserver | no fix listed | UBUNTU-CVE-2026-30479 |
| Ubuntu:25.10 | mapserver | no fix listed | UBUNTU-CVE-2026-30479 |
| Ubuntu:26.04:LTS | mapserver | no fix listed | UBUNTU-CVE-2026-30479 |
| Ubuntu:26.10 | mapserver | no fix listed | UBUNTU-CVE-2026-30479 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N