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Dir 823G

3 CVEs product

Monthly

CVE-2026-90680 Sep 14, 04:00 CRITICAL POC Act Now

Stack-based buffer overflow in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) lets a remote attacker corrupt stack memory via the HNAP1 SetStaticRouteSettings handler. The vulnerable strcpy call copies attacker-supplied PAddress, SubnetMask, and Gateway values without bounds checking, enabling denial of service and potential code execution on the device. Publicly available exploit code exists (VulDB and a GitHub advisory), though it is not listed in CISA KEV; EPSS was not provided.

Buffer Overflow D-Link Stack Overflow Dir 823G D-Link
NVD VulDB GitHub
CVSS 4.0
9.4
EPSS
0.5%
CVE-2026-15270 Jul 09, 19:45 MEDIUM POC This Month

Least-privilege violation in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) stems from insecure configuration of the Boa web server via /etc/boa/boa.conf, allowing an authenticated remote attacker to abuse over-broad privileges to compromise confidentiality, integrity, and availability. Publicly available exploit code exists, but the CVSS 4.0 vector rates attack complexity high (AC:H) and vendor guidance notes exploitation is difficult; there is no public exploit identified as actively exploited (not in CISA KEV). EPSS data was not supplied, but the low-privilege network vector combined with full CIA impact makes this a meaningful risk on exposed devices.

Information Disclosure D-Link Dir 823G D-Link
NVD VulDB
CVSS 4.0
6.8
EPSS
0.4%
CVE-2026-11492 Jun 08, 05:30 LOW POC Monitor

Least privilege violation in D-Link DIR-823G firmware version 1.0.2B05 exposes the vsftpd FTP daemon configuration file (/etc/vsftpd.conf) to manipulation by network-accessible, low-privileged authenticated users, enabling unauthorized modification of FTP service behavior. The CVSS vector (AV:N/AC:L/PR:L/UI:N/I:L) confirms this is remotely exploitable with low complexity by any authenticated user, resulting in limited integrity impact. A publicly available proof-of-concept exploit has been released per VulDB reporting (E:P), though no active exploitation has been confirmed in CISA KEV at this time.

Information Disclosure D-Link Dir 823G D-Link
NVD VulDB
CVSS 4.0
2.1
EPSS
0.0%
EPSS 1% CVSS 9.4
CRITICAL POC Act Now

Stack-based buffer overflow in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) lets a remote attacker corrupt stack memory via the HNAP1 SetStaticRouteSettings handler. The vulnerable strcpy call copies attacker-supplied PAddress, SubnetMask, and Gateway values without bounds checking, enabling denial of service and potential code execution on the device. Publicly available exploit code exists (VulDB and a GitHub advisory), though it is not listed in CISA KEV; EPSS was not provided.

Buffer Overflow D-Link Stack Overflow +2
NVD VulDB GitHub
EPSS 0% CVSS 6.8
MEDIUM POC This Month

Least-privilege violation in the D-Link DIR-823G router (firmware 1.0.2B05_20181207) stems from insecure configuration of the Boa web server via /etc/boa/boa.conf, allowing an authenticated remote attacker to abuse over-broad privileges to compromise confidentiality, integrity, and availability. Publicly available exploit code exists, but the CVSS 4.0 vector rates attack complexity high (AC:H) and vendor guidance notes exploitation is difficult; there is no public exploit identified as actively exploited (not in CISA KEV). EPSS data was not supplied, but the low-privilege network vector combined with full CIA impact makes this a meaningful risk on exposed devices.

Information Disclosure D-Link Dir 823G +1
NVD VulDB
EPSS 0% CVSS 2.1
LOW POC Monitor

Least privilege violation in D-Link DIR-823G firmware version 1.0.2B05 exposes the vsftpd FTP daemon configuration file (/etc/vsftpd.conf) to manipulation by network-accessible, low-privileged authenticated users, enabling unauthorized modification of FTP service behavior. The CVSS vector (AV:N/AC:L/PR:L/UI:N/I:L) confirms this is remotely exploitable with low complexity by any authenticated user, resulting in limited integrity impact. A publicly available proof-of-concept exploit has been released per VulDB reporting (E:P), though no active exploitation has been confirmed in CISA KEV at this time.

Information Disclosure D-Link Dir 823G +1
NVD VulDB

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