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High severity · published Mar 20, 2026
CVE-2026-4487
UTT HiPER 1200GW websHostFilter strcpy buffer overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was determined in UTT HiPER 1200GW up to 2.5.3-170306. This impacts the function strcpy of the file /goform/websHostFilter. This manipulation causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
H1
HiPER 1200GW · UTT
2.5.3-170306 · source: vendor
Affected product
H1
HiPER 1200GW
UTT
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4487
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4487
github.com
https://github.com/hmKunlun/UTTHiPER/blob/main/HiPER%201200GW.md
vuldb.com
https://vuldb.com/?ctiid.352010
vuldb.com
https://vuldb.com/?id.352010
vuldb.com
https://vuldb.com/?submit.773538
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