CVE-2025-1103
CVE-2025-1103 is a medium-severity vulnerability in Dlink Dir-823x Firmware with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-476.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 6.8
- CVSS v4: 7.1
- EPSS exploit prediction: 12% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-2005
- Weakness: CWE-476
- Affected product: Dlink Dir-823x Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2025-1103?
- 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.
- How severe is CVE-2025-1103?
- CVE-2025-1103 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-1103 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-1103?
- CVE-2025-1103 primarily affects Dlink Dir-823x Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-1103?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-1103 have an EU (EUVD) identifier?
- Yes. CVE-2025-1103 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2005.
- When was CVE-2025-1103 published?
- CVE-2025-1103 was published on 2025-02-07 and last updated on 2026-06-17.
References
- https://tasty-foxtrot-3a8.notion.site/D-link-DIR-823X-set_wifi_blacklists-Vulnerability-1870448e619580e5bf09cf628692f7a9?pvs=73
- https://vuldb.com/?ctiid.294933
- https://vuldb.com/?id.294933
- https://vuldb.com/?submit.489603
- https://www.dlink.com/
- https://tasty-foxtrot-3a8.notion.site/D-link-DIR-823X-set_wifi_blacklists-Vulnerability-1870448e619580e5bf09cf628692f7a9
Affected products (2)
- cpe:2.3:o:dlink:dir-823x_firmware:240126:*:*:*:*:*:*:*
- cpe:2.3:o:dlink:dir-823x_firmware:240802:*:*:*:*:*:*:*
More vulnerabilities in Dlink Dir-823x Firmware
- CVE-2025-29043 — Critical (CVSS 9.8): An issue in dlink DIR 832x 240802 allows a remote attacker to execute arbitrary code via the function 0x417234
- CVE-2025-29042 — Critical (CVSS 9.8): An issue in dlink DIR 832x 240802 allows a remote attacker to execute arbitrary code via the macaddr key value to the…
- CVE-2025-29041 — Critical (CVSS 9.8): An issue in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and…
- CVE-2025-29040 — Critical (CVSS 9.8): An issue in dlink DIR 823x 240802 allows a remote attacker to execute arbitrary code via the target_addr key value and…
- CVE-2024-39962 — Critical (CVSS 9.8): D-Link DIR-823X AX3000 Dual-Band Gigabit Wireless Router v21_D240126 was discovered to contain a remote code execution…
- CVE-2025-55848 — High (CVSS 8.8): An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings…
All CVEs affecting Dlink Dir-823x Firmware →
Other CWE-476 (NULL Pointer Dereference) vulnerabilities
- CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
- CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
- CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
- CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
- CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
- CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…
Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →