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VulnerabilityPublished

CVE-2026-95861: Ubiquiti Dream Machines · Uncontrolled Recursion

Affects Ubiquiti Dream MachinesSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High : upgrade to 5.1.31 soon.

Data as of 5 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 5.1.31, 4.0.21, 5.1.26
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade Dream Machines and Enterprise Firewalls and Dream Routers and Cloud Gateways and Dream Wall and Express 7 to 5.1.31; Express to 4.0.21; UniFi Gateways to 5.1.26.

Affected software

ProductAffectedFixed in
Ubiquiti IncDream MachinesAffected
  • <5.1.31
Fixed in
  • 5.1.31
Ubiquiti IncEnterprise FirewallsAffected
  • <5.1.31
Fixed in
  • 5.1.31
Ubiquiti IncDream RoutersAffected
  • <5.1.31
Fixed in
  • 5.1.31
Ubiquiti IncCloud GatewaysAffected
  • <5.1.31
Fixed in
  • 5.1.31
Ubiquiti IncDream WallAffected
  • <5.1.31
Fixed in
  • 5.1.31
Ubiquiti IncExpressAffected
  • <4.0.21
Fixed in
  • 4.0.21

AI-suggested

If you cannot patch yet, restricting network access to trusted users and devices may reduce exposure.

Description

CVE-2026-95861 is an Uncontrolled Recursion vulnerability in Ubiquiti Inc Dream Machines UniFi gateway devices. An attacker with network access could exploit this flaw to cause a Denial of Service (DoS) condition, disrupting device availability. The vulnerability affects multiple versions prior to 5.1.31, 4.0.21, and 5.1.26. The CVSS score is 7.5, indicating high severity. No known exploits are reported in the wild.

References

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