Buffer overflow in Utt Hiper 1200gw
CVE-2026-18898
A security flaw has been discovered in UTT HiPER 1200GW up to v2.5.3-170306. This affects the function strcpy of the file /goform/ConfigAdvideo. The manipulation of the argument timestart results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (57.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Utt Hiper 1200gw — versions v2.5.3-170306
Weakness classification (CWE)
References
- VDB-385933 | UTT HiPER 1200GW ConfigAdvideo strcpy stack-based overflow (technical-description, vdb-entry)
- VDB-385933 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- CVE-2026-18898 | CVE Analysis and Report (third-party-advisory)
- Submit #858620 | UTT HiPER 1200GW <=v2.5.3-170306 Buffer Overflow (third-party-advisory)
- github.com/7wkajk/CVE-VUL/blob/main/103.md (exploit)
Frequently asked questions
- What is CVE-2026-18898?
- CVE-2026-18898 is a high-severity vulnerability in Utt Hiper 1200gw, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-08-05.
- How severe is CVE-2026-18898?
- High severity. CVSS v3 base score is 8.8 out of 10.