Buffer overflow in D-Link Di-7100g C1
CVE-2025-11339
A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (55.5th percentile) — read the EPSS interpretation.
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.
Affected products
- D-link Di-7100g C1 — versions 20250928
- Dlink Di-7100g_c1
- Dlink Di-7100g_c1_firmware — versions 2025-09-28
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Permissions Required, related)
- cna@vuldb.com (Permissions Required, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2025-11339?
- CVE-2025-11339 is a high-severity vulnerability in D-Link Di-7100g C1, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-10-06.
- How severe is CVE-2025-11339?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2025-11339 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.