Which versions of Di 8100 Firmware are affected by CVE-2025-4544?

Organizations using D-Link DI-8100 face notable risk from CVE-2025-4544, a buffer overflow vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-4544?

Yes, a public proof-of-concept exploit is available for CVE-2025-4544. Prioritise patching immediately. EPSS: 1.3%.

How to fix or mitigate CVE-2025-4544?

Within 30 days: Identify all affected systems running D-Link DI-8100 and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Di 8100 Firmware CVE-2025-4544

Q: What is the CVSS score of CVE-2025-4544?

CVE-2025-4544 has a CVSS 4.0 base score of 7.5 (High). CVSS vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 1.3%.

HIGH

Buffer Overflow (CWE-119)

2025-05-11 cna@vuldb.com

D-Link Buffer Overflow Di 8100 Firmware

7.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:41 vuln.today

PoC Detected

May 22, 2025 - 18:24 vuln.today

Public exploit code

CVE Published

May 11, 2025 - 19:15 nvd

HIGH 7.5

DescriptionCVE.org

A vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /ddos.asp of the component jhttpd. The manipulation of the argument def_max/def_time/def_tcp_max/def_tcp_time/def_udp_max/def_udp_time/def_icmp_max leads to stack-based buffer overflow. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult.

AnalysisAI

A vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical.asp of the component jhttpd. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A vulnerability was found in D-Link DI-8100 up to 16.07.26A1 and classified as critical.asp of the component jhttpd. The manipulation of the argument def_max/def_time/def_tcp_max/def_tcp_time/def_udp_max/def_udp_time/def_icmp_max leads to stack-based buffer overflow. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. Affected products include: Dlink Di-8100 Firmware. Version information: up to 16.07.26.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.