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Fencer Vulns
high 7.5

CVE-2020-12695 in the critical feed json

The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a deliv…

published 2020-06-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4987

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
15.2%
EPSS 15.2% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

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.

Patch / fix

  • w1.fi hostapd 2.0.0
  • wpa Debian 14, Debian 13, Debian 12 2:2.9.0-16
  • gupnp Debian 14, Debian 13, Debian 12 1.2.3-1
  • minidlna Debian 14, Debian 13, Debian 12 1.2.1+dfsg-3

debian advisories DEBIAN-CVE-2020-12695

  • wpa Ubuntu 16.04 LTS 2.4-0ubuntu6.7
  • wpa Ubuntu 18.04 LTS 2:2.6-15ubuntu2.7
  • wpa Ubuntu 20.04 LTS 2:2.9-1ubuntu4.2
  • gupnp Ubuntu 20.04 LTS 1.2.3-0ubuntu0.20.04.1
  • minidlna Ubuntu 16.04 LTS 1.1.5+dfsg-2ubuntu0.1
  • minidlna Ubuntu 18.04 LTS 1.2.1+dfsg-1ubuntu0.18.04.1
  • minidlna Ubuntu 20.04 LTS 1.2.1+dfsg-1ubuntu0.20.04.1
  • wpa Ubuntu Pro 14.04 LTS 2.1-0ubuntu1.7+esm3

ubuntu advisories UBUNTU-CVE-2020-12695

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gssdp RHEL 8 1.0.5-1.el8
  • gupnp RHEL 8 1.0.6-1.el8

red hat advisories RHSA-2021:1789

  • gupnp openSUSE Tumbleweed 1.2.7-2.2
  • hostapd openSUSE Tumbleweed 2.9-6.2
  • minidlna openSUSE Tumbleweed 1.3.0-2.7
  • hostapd Package Hub 15 SP2 2.9-bp152.2.3.1
  • hostapd openSUSE Leap 15.2 2.9-lp152.2.3.1
  • minidlna Package Hub 15 SP1 1.3.0-bp151.2.3.1
  • minidlna Package Hub 15 SP2 1.3.0-bp152.4.3.1
  • minidlna openSUSE Leap 15.1 1.3.0-lp151.3.3.1

opensuse advisories openSUSE-SU-2024:10837-1openSUSE-SU-2024:10846-1openSUSE-SU-2024:11050-1openSUSE-SU-2021:0545-1openSUSE-SU-2021:0519-1openSUSE-SU-2020:2226-1

  • gssdp AlmaLinux 8 1.0.5-1.el8

almalinux advisories ALSA-2021:1789

  • gssdp Rocky Linux 8 1.0.5-1.el8

rocky linux advisories RLSA-2021:1789

  • hostapd Alpine 3.10 2.8-r3
  • hostapd Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 2.9-r2
  • hostapd Alpine 3.9 2.7-r6
  • minidlna Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 1.2.1-r2

alpine advisories ALPINE-CVE-2020-12695

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • hostapd Arch Linux 2.9-4

arch linux advisories AVG-1322

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-12695 updated cvss 7.5

hostapd: UPnP SUBSCRIBE misbehavior in WPS AP

  • Red Hat Enterprise Linux 5 wpa_supplicant Red Hat Enterprise Linux 6 gssdp, gupnp, wpa_supplicant
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 gssdp, gupnp, gssdp-utils
    affected: workaround, no fix planned “Will not fix”
  • Red Hat CodeReady Linux Builder (v. 8) gssdp-docs 1.0.5-1.el8, gssdp-devel 1.0.5-1.el8, gupnp-devel 1.0.6-1.el8, gssdp-debuginfo 1.0.5-1.el8, gupnp-debuginfo 1.0.6-1.el8, gssdp-debugsource 1.0.5-1.el8, +2 more Red Hat Enterprise Linux AppStream (v. 8) gssdp 1.0.5-1.el8, gupnp 1.0.6-1.el8
    fixed: vendor fix RHSA-2021:1789
  • Red Hat Enterprise Linux 7 wpa_supplicant Red Hat Enterprise Linux 8 wpa_supplicant
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

15.19% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
NVD 2.0 7.8 AV:N/AC:M/Au:N/C:P/I:N/A:C

Classification

Weakness
  • CWE-276 Incorrect Default Permissions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.