What’s Vulnerable › Vulnerabilities

CVE-2020-12695

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-08 · updated 2026-06-17
• Weakness: CWE-276

Description

The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, aka the CallStranger issue.

Affected products

• ASUS Rt-N11: all versions
• Broadcom Adsl: all versions
• Canon Selphy Cp1200: all versions
• Canonical Ubuntu Linux: 20.04
• Cisco Wap131: all versions
• Cisco Wap150: all versions
• Cisco Wap351: all versions
• Debian Linux: 9.0, 10.0
• Dell B1165Nfw: all versions
• Dlink Dvg-N5412Sp: all versions
• Epson Ep-101: all versions
• Epson Ew-M970A3T: all versions
• Epson M571T: all versions
• Epson Xp-100: all versions
• Epson Xp-2101: all versions
• Epson Xp-2105: all versions
• Epson Xp-241: all versions
• Epson Xp-320: all versions
• Epson Xp-330: all versions
• Epson Xp-340: all versions
• Epson Xp-4100: all versions
• Epson Xp-4105: all versions
• Epson Xp-440: all versions
• Epson Xp-620: all versions
• Epson Xp-630: all versions
• Epson Xp-702: all versions
• Epson Xp-8500: all versions
• Epson Xp-8600: all versions
• Epson Xp-960: all versions
• Epson Xp-970: all versions

References

• http://packetstormsecurity.com/files/158051/CallStranger-UPnP-Vulnerability-Checker.html
• http://www.openwall.com/lists/oss-security/2020/06/08/2
• https://corelight.blog/2020/06/10/detecting-the-new-callstranger-upnp-vulnerability-with-zeek/
• https://github.com/corelight/callstranger-detector
• https://github.com/yunuscadirci/CallStranger
• https://lists.debian.org/debian-lts-announce/2020/08/msg00011.html
• https://lists.debian.org/debian-lts-announce/2020/08/msg00013.html
• https://lists.debian.org/debian-lts-announce/2020/12/msg00017.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3SHL4LOFGHJ3DIXSUIQELGVBDJ7V7LB/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZDWHKGN3LMGSUEOAAVAMOD3IUIPJVOJ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQEYVY4D7LASH6AI4WK3IK2QBFHHF3Q2/
• https://usn.ubuntu.com/4494-1/

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