CVE-2002-1865: Buffer overflow in the Embedded HTTP server, as used in (1) D-Link DI-804 4.68, Dl-704 V2.56b6, and Dl-704 V2.

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MEDIUM 5.0MITIGATEMITIGATEMITIGATE

CVE-2002-1865 is a medium-severity flaw (CVSS 5.0) affecting di-804, dl-704, befw11s4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the Embedded HTTP server, as used in (1) D-Link DI-804 4.68, Dl-704 V2.56b6, and Dl-704 V2.56b5 and (2) Linksys Etherfast BEFW11S4 Wireless AP + Cable/DSL Router 1.37.2 through 1.42.7 and Linksys WAP11 1.3 and 1.4, allows remote attackers to cause a denial of service (crash) via a long header, as demonstrated using the Host header.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: d-link · linksys

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

d-link di-804 MITIGATE

Affected: 4.68

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.68

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

d-link dl-704 MITIGATE

Affected: 2.56_b5 · 2.56_b6

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.56_b5

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

linksys befw11s4 MITIGATE

Affected: 1.4.2.7 · 1.37.2 · 1.37.2b · 1.37.9b · 1.40.3 · 1.42.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.2.7

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

linksys wap11 MITIGATE

Affected: 1.3 · 1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Linksys WAP11 1.3/1.4 / D-Link DI-804 4.68/Dl-704 2.56 b5 - Embedded HTTP Server Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2002-1865?

di-804: mitigate or apply the listed mitigation; dl-704: mitigate or apply the listed mitigation; befw11s4: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-1865 being exploited?

CVE-2002-1865 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2002-1865 affect?

CVE-2002-1865 affects di-804, dl-704, befw11s4. Severity is medium (CVSS 5.0). Buffer overflow in the Embedded HTTP server, as used in (1) D-Link DI-804 4.68, Dl-704 V2.56b6, and Dl-704 V2.56b5 and (2) Linksys Etherfast BEFW11S4 Wireless AP + Cable/DSL Router 1.37.2 through 1.42.7 and Linksys WAP11 1.3 and 1.4, allows

How urgent is CVE-2002-1865?

Priority 44/100. Public exploit reference

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2002-1069 MEDIUM 5.0 MITIGATE The remote administration capability for the D-Link DI-804 router 4.68 allows remote attackers to bypass authe

References

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