Qualys discovered that needrestart, before version 3.8, allows local attackers to execute arbitrary code as root by winning a race condition and tricking needrestart into running their own, fake Python interpreter (instead of the system's real Python interpreter). The initial security fix (6ce6136) introduced a regression which was subsequently resolved (42af5d3).
Conclusion & alert: CVE-2024-48991 is rated Moderate Risk (45.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.18%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-04-10 | 0.25% | 0.18% | -0.07% |
| 2 | 2025-12-28 | 0.08% | 0.25% | +0.17% |
| 3 | 2025-04-15 | — | 0.08% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2024-48991 not yet assigned priority: Debian including 1 source packages (needrestart), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-48991 |
ubuntu
|
high | CVE-2024-48991 high priority: Ubuntu including 1 source packages (needrestart), 8 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, upstream, xenial): released 7, needed 1. | https://ubuntu.com/security/CVE-2024-48991 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| needrestart_project | needrestart | < 3.8 | cpe:2.3:a:needrestart_project:needrestart:*:*:*:*:*:*:*:* |