CVE-2020-12695

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

15.2% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2020-05-07 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2020-06-08 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-17 02:52 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 15.2% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2020-06-08 17:15 UTC

Last modified

2026-06-17 02:52 UTC

Exploit probability

15.2% · EPSS, next 30 days

Weakness

CWE-276 · Incorrect default permissions

Record status

Modified

Affected

• Ui Unifi Controller
• w1.fi Hostapd < 2.0.0
• Asus rt-n11
• Broadcom Adsl
• Canon Selphy cp1200
• Cisco wap131
• Cisco wap150
• Cisco wap351

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

High

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-12695.md and follow it. Check whether this project is affected by CVE-2020-12695. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge