Portable UPnP SDK (aka libupnp) before 1.6.21 allows remote attackers to write to…
Priority MEDIUM 55CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-284.
Summary
Portable UPnP SDK (aka libupnp) before 1.6.21 allows remote attackers to write to arbitrary files in the webroot via a POST request without a registered handler.
Why it matters now
EPSS 0.27022 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:a:libupnp_project:libupnp:*:*:*:*:*:*:*:* | up to 1.6.20 | Vulnerable | Libupnp Project |
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:a:libupnp_project:libupnp:*:*:*:*:*:*:*:* Versions up to 1.6.20 Vulnerable ·Libupnp Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6255
- 2026-10-03 Alias added: GHSA-cpx4-fhhq-52jh
References
Exploit 1
Patch 3
Advisory 4
Sources
- CVE-2016-6255 · CVE Program
- CVE-2016-6255 · NVD
- FIRST EPSS
- GHSA-cpx4-fhhq-52jh · GitHub Advisory Database · CC BY 4.0
- CVE-2016-6255 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences