CVE-2026-5815: D-Link DIR-645

Affected products, as the CNA wrote them
Vendor	Product	Versions
D-Link	DIR-645	affected 1.01 affected 1.02 affected 1.03

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.7	High	4.0	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	CNA (VulDB)Used for this record
8.8	High	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	CNA (VulDB)
8.8	High	3.0	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	CNA (VulDB)
9.0	High	2.0	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0071, the 53rd percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 8 Apr 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/356263 vdb-entrytechnical-description
vuldb.com/vuln/356263/cti signaturepermissions-required
vuldb.com/submit/788298 third-party-advisory
github.com/Pers1st0/CVE/blob/main/stack-based%20buffer%20overflow%20vulnerability%20exists%20in%20the%20hedwig.cgi%20of%20D-Link%20DIR-645.md related
www.dlink.com/ product
github.com/Pers1st0/CVE/blob/main/stack-based%20buffer%20overflow%20vulnerability%20exists%20in%20the%20hedwig.cgi%20of%20D-Link%20DIR-645.md#poc exploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.