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CVE-2025-7602VulnerabilityPublished

CVE-2025-7602: D-Link DI-8100 · Stack-based Buffer Overflow

Affects D-Link DI-8100Source CVE Database V5

0

Not known to be exploited · CVSS 8.6 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.3% chance of exploitation in 30 days – higher than 70% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
GitHubd-link/DI-8100pkg:github/d-link/DI-8100Other threatsAffected
  • =16.07.26
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

1. Immediate network segmentation: Isolate affected D-Link DI-8100 devices from critical network segments to limit potential lateral movement. 2. Access control: Restrict management interfaces of the affected routers to trusted IP addresses and use VPNs or secure tunnels for administrative access. 3. Monitor network traffic: Implement IDS/IPS rules to detect anomalous HTTP requests targeting /arp_sys.asp or unusual traffic patterns indicative of exploitation attempts. 4. Firmware updates: Engage with D-Link support channels to obtain any available patches or firmware updates addressing this vulnerability. 5. Incident response readiness: Prepare to detect and respond to potential exploitation by enabling detailed logging on routers and connected network devices. 6. Privilege management: Since exploitation requires high privileges, review and harden device access credentials and administrative policies to prevent unauthorized privilege escalation. 7. Vendor communication: Maintain active communication with D-Link for updates and advisories related to this vulnerability. 8. Network hardening: Disable unnecessary services and interfaces on the router to reduce the attack surface.

Description

A vulnerability was found in D-Link DI-8100 16.07.26A1 and classified as critical. This issue affects some unknown processing of the file /arp_sys.asp of the component HTTP Request Handler. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

References

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