Buffer overflow in Utt Hiper 1200gw
CVE-2026-76003
A weakness has been identified in UTT HiPER 1200GW up to 2.5.3-170306. Affected is the function strcpy of the file /goform/formGroupConfig. Executing a manipulation of the argument timestart can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.008 · change: +0.003
Affected products
- Utt Hiper 1200gw — versions 2.5.3-170306
Weakness classification (CWE)
References
- vuldb.com/vuln/391919 (technical-description, vdb-entry)
- vuldb.com/vuln/391919/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-76003 (third-party-advisory)
- vuldb.com/submit/877884 (third-party-advisory)
- github.com/7wkajk/CVE-VUL/blob/main/105.md (exploit)
Frequently asked questions
- What is CVE-2026-76003?
- CVE-2026-76003 is a critical-severity vulnerability in Utt Hiper 1200gw, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-08-19.
- How severe is CVE-2026-76003?
- Critical severity. CVSS v3 base score is 9.9 out of 10.