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CVE-2026-2855· NVD / CVE Program· CNA VulDB

D-Link DWR-M960 DDNS Settings formDdns sub_4648F0 stack-based overflow

A vulnerability has been found in D-Link DWR-M960 1.01.07. Affected is the function sub_4648F0 of the file /boafrm/formDdns of the component DDNS Settings Handler. The manipulation of the argument submit-url leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

HighCVSS 7.4 · v4.0—No exploit No fix recorded
Published
Feb 20, 2026
Updated
Jun 17, 2026
EPSS
1.2% · 67th percentile
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Report tools

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Action score

29

Monitor

Low priority for now.

CVSS
29 / 40 · 7.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
8.7
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
dlinkdwr-m960 firmware
dlinkdwr-m960

Affected versions

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

  • dlink dwr-m960 firmware1.01.07

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • D-Link DWR-M960

    • 1.01.07affected

Same product

dlink: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-2962D-Link DWR-M960 Scheduled Reboot Configuration Endpoint formDateReboot sub_460F30 stack-based overflow
    29Monitor
  • CVE-2026-2961D-Link DWR-M960 VPN Configuration Endpoint formVpnConfigSetup sub_4196C4 stack-based overflow
    29Monitor
  • CVE-2026-2960D-Link DWR-M960 formDhcpv6s sub_468D64 stack-based overflow
    29Monitor
  • CVE-2026-2959D-Link DWR-M960 formNewSchedule sub_44E0F8 stack-based overflow
    29Monitor
  • CVE-2026-2958D-Link DWR-M960 formWsc sub_457C5C stack-based overflow
    29Monitor
  • CVE-2026-2929D-Link DWR-M960 Wireless Access Control Endpoint formWlAc sub_453140 stack-based overflow
    29Monitor

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+1% in 7 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.

Variant candidates

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

  • CVE-2026-28530 days apartD-Link DWR-M960 System Log Configuration Endpoint formSysLog sub_462E14 stack-based overflow
    29Monitor
  • CVE-2026-28540 days apartD-Link DWR-M960 NTP Configuration Endpoint formNtp sub_4611CC stack-based overflow
    29Monitor
  • CVE-2026-28560 days apartD-Link DWR-M960 Filter Configuration Endpoint formFilter sub_424AFC stack-based overflow
    29Monitor
  • CVE-2026-28570 days apartD-Link DWR-M960 Port Forwarding Configuration Endpoint formPortFw sub_423E00 stack-based overflow
    29Monitor
  • CVE-2026-28811 days apartD-Link DWR-M960 Advanced Firewall Configuration Endpoint formFirewallAdv sub_425FF8 stack-based overflow
    29Monitor
  • CVE-2026-28821 days apartD-Link DWR-M960 formDosCfg sub_46385C stack-based overflow
    29Monitor

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.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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

nvd-secondary

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

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

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