CVE-2025-1103

mediumpriority · track · 31EPSS 0.141 · 97 %ileDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

14.1% (97th) EPSS

CVSS 6.5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

A vulnerability, which was classified as problematic, was found in D-Link DIR-823X 240126/240802. This affects the function set_wifi_blacklists of the file /goform/set_wifi_blacklists of the component HTTP POST Request Handler. The manipulation of the argument macList leads to null pointer dereference. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.1

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v2.06.8mediumAV:N/AC:L/Au:S/C:N/I:N/A:Csecondary · cna@vuldb.comexploitability 8 · impact 6.9

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · cna@vuldb.comexploitability 2.8 · impact 3.6

v4.07.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.07.1highCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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:Xsecondary · cna@vuldb.com

v4.04.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-476USprimaryCWE-404USCWE-404USCWE-476US

affected products (7)

Products and version ranges known to be affected.

D-LINK Router DIR-823X_240126/240802all versionscert_bundDEcpe:/h:d-link:router:dir-823x_240126240802
D-Link DIR-823X≤ 240126enisa_euvdEU
D-Link DIR-823X≤ 240802enisa_euvdEU
D-Link Corp. DIR-823X≤ 240802fstec_bduRU
D-Link Corp. DIR-823X≤ 240126fstec_bduRU
dlink dir-823x firmware= 240126nvdUScpe:2.3:o:dlink:dir-823x_firmware:*:*:*:*:*:*:*:*
dlink dir-823x firmware= 240802nvdUScpe:2.3:o:dlink:dir-823x_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0296D-LINK DIR-823X Router: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-02-09csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in D-LINK DIR-823X Routern ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2025-02-07modified 2026-06-17

related (8,283)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-21525US	—OT critical	4.83% (92nd)	KEV	2026-02-10
Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.
CVE-2010-0425US	high10.0	94.2% (100th)	Exploit	2010-03-05
modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and 2.3.x before 2.3.7, when running on Windows, does not ensure…
CVE-2003-0772US	high7.5	84.9% (100th)	Exploit	2003-09-22
Multiple buffer overflows in WS_FTP 3 and 4 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via long (1) APPE (append) or (2) STAT…
CVE-2021-26690US	high7.5	65.3% (99th)	Exploit	2021-06-10
Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of…
CVE-2021-44224US	high8.2	82.3% (100th)	—	2021-12-20
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy de…

+8278 more

references (17)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan