High severity7.5NVD Advisory· Published Aug 15, 2022· Updated Jun 17, 2026
CVE-2020-23622
CVE-2020-23622
Description
An issue in the UPnP protocol in 4thline cling 2.0.0 through 2.1.2 allows remote attackers to cause a denial of service via an unchecked CALLBACK parameter in the request header
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.fourthline.cling:cling-coreMaven | >= 2.0.0, <= 2.1.2 | — |
Affected products
3- 4thline/clingdescription
Patches
Vulnerability mechanics
References
4- github.com/4thline/cling/issues/253nvdExploitIssue TrackingPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-c438-6f6r-pg8wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-23622ghsaADVISORY
- zh-cn.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-universal-plug-and-play-upnp-puts-billions-ofnvdNot ApplicableWEB
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