QuickJS before c4cdd61 has a build_for_in_iterator NULL pointer dereference because of an erroneous lexical scope of "this" with eval.
Conclusion & alert: CVE-2023-48183 is rated High Exploit Risk (61.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.64%). Core evidence: 1 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 ↗ |
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 | 0.05% | 0.64% | +0.59% |
| 2 | 2025-11-21 | 0.25% | 0.05% | -0.19% |
| 3 | 2025-11-18 | — | 0.25% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-48183: 1 source package rows (quickjs); 8 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 8. | https://security.alpinelinux.org/vuln/CVE-2023-48183 |
debian
|
not yet assigned | CVE-2023-48183 not yet assigned priority: Debian including 1 source packages (quickjs), 3 status rows across 3 suites (forky, sid, trixie): resolved 3. | https://security-tracker.debian.org/tracker/CVE-2023-48183 |
ubuntu
|
medium | CVE-2023-48183 medium priority: Ubuntu including 1 source packages (quickjs), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): not-affected 3, DNE 2, released 2, ignored 1. | https://ubuntu.com/security/CVE-2023-48183 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| quickjs_project | quickjs | < 2023-12-09 | cpe:2.3:a:quickjs_project:quickjs:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/bellard/quickjs/commit/c4cdd61a3ed284cd760faf6b00bbf0cb908da077 | Patch |
| https://github.com/bellard/quickjs/issues/192 | Exploit Issue Tracking |