Static Web Server (SWS) is a production-ready web server suitable for static web files or assets. Versions 2.40.0 and below contain symbolic links (symlinks) which can be used to access files or directories outside the intended web root folder. SWS generally does not prevent symlinks from escaping the web server’s root directory. Therefore, if a malicious actor gains access to the web server’s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing. This issue is fixed in version 2.40.1.
CVE-2025-67487
This high-severity CVE scores 8.6 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 81% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.6
- EG Score
- 8.6(medium)
- EG Risk
- —
- EPSS
- 28.7%
- KEV
- Not listed
Published
December 9, 2025
Last Modified
June 17, 2026
References (3)
- security-advisories@githubhttps://github.com/static-web-server/static-web-server/commit/308f0d26ceb9c2c8bd219315d0f53914763357f2
- security-advisories@githubhttps://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/static-web-server/static-web-server/security/advisories/GHSA-459f-x8vq-xjjm
Affected Packages
(1 across 1 ecosystem)
crates.io(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| static-web-server | — | 2.40.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-29 18:08 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
Frequently asked(5)
What is CVE-2025-67487?
When was CVE-2025-67487 disclosed?
Is CVE-2025-67487 actively exploited?
What is the CVSS score of CVE-2025-67487?
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Dependency Blast Radius
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