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CVE-2025-50669· NVD / CVE Program· CNA mitre

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 and DI-8003G 19.12.10A1 due to improper handling of the wan_ping paramet

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 and DI-8003G 19.12.10A1 due to improper handling of the wan_ping parameter in the /wan_ping.asp endpoint.

HighCVSS 7.5 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Apr 8, 2026
Updated
Jul 25, 2026
EPSS
0.4% · 33th percentile
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Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
dlinkdi-8003 firmware
dlinkdi-8003

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dlink di-8003 firmware16.07.26a1

Same product

dlink: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-52759D-LINK DI-8003 v16.07.26A1 was discovered to contain a buffer overflow via the ip parameter in the ip_position_asp function.
    41Plan
  • CVE-2024-11048D-Link DI-8003 dbsrv.asp dbsrv_asp stack-based overflow
    34Monitor
  • CVE-2024-11047D-Link DI-8003 upgrade_filter.asp upgrade_filter_asp stack-based overflow
    34Monitor
  • CVE-2025-50673A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the http_lanport parameter in the /webgl.asp
    30Monitor
  • CVE-2025-50672A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of parameters in the /yyxz_dlink.asp endpoint.
    30Monitor
  • CVE-2025-50671A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of parameters in the /xwgl_ref.asp endpoint.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-52759505 days apartD-LINK DI-8003 v16.07.26A1 was discovered to contain a buffer overflow via the ip parameter in the ip_position_asp function.
    41Plan
  • CVE-2025-506460 days apartA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to insufficient input validation on the name parameter in the /qos_t
    30Monitor
  • CVE-2025-506470 days apartA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1, specifically in the handling of the wans parameter in the qos.asp endpo
    30Monitor
  • CVE-2025-506480 days apartA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to inadequate input validation in the /tggl.asp endpoint.
    30Monitor
  • CVE-2025-506490 days apartA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper input validation in the vlan_name parameter in the /shut
    30Monitor
  • CVE-2025-506500 days apartA buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to inadequate validation of input size in the routes_static paramete
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-secondary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
char buf[256];memcpy(buf, pkt->data, pkt->len);

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records