CVE-2026-77555
A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to ex
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.1.31, 4.0.21, 5.1.26
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Ubiquiti Inc Dream Machines
fixed in 5.1.31
- Ubiquiti Inc Enterprise Firewalls
fixed in 5.1.31
- Ubiquiti Inc Dream Routers
fixed in 5.1.31
- Ubiquiti Inc Cloud Gateways
fixed in 5.1.31
- Ubiquiti Inc Dream Wall
fixed in 5.1.31
- Ubiquiti Inc Express
fixed in 4.0.21
- Ubiquiti Inc Express 7
fixed in 5.1.31
- Ubiquiti Inc UniFi Gateways
fixed in 5.1.26