CVE-2026-15270: d-link dir-823g_firmware Incorrect Privilege Assignment
Vulnerability summary
CVE-2026-15270 is a high (CVSS 7.7) Incorrect Privilege Assignment vulnerability in d-link dir-823g_firmware. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 09-07-2026PublishedVulnerability first disclosed.
- 10-07-2026Last modifiedVulnerability information updated.
Description
A weakness has been identified in D-link DIR-823G 1.0.2B05_20181207. Affected by this vulnerability is an unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. Executing a manipulation can lead to least privilege violation. The attack can be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been made available to the public and could be used for attacks.
CVSS metrics
7 scores · 2 sources · 4 versions- NVDNIST6.8MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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:XDiffers
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.1HighAV:N/AC:H/Au:S/C:C/I:C/A:C
EPSS trend
Probability
0.85%
Chance of exploitation in the next 30 days
Percentile
58%
Versus all other CVEs
30-day change
0.00 pp
From 0.85% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (app.notion.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-266Incorrect Privilege AssignmentA product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
- CWE-272Least Privilege ViolationThe elevated privilege level required to perform operations such as chroot() should be dropped immediately after the operation is performed.
Affected systems
D-link1 product
- dir-823g_firmware1.0.2B05_20181207
Dlink1 product
- dir-823g_firmware1.0.2b05_20181207
2 vendors · 2 products
References
6 links- app.notion.com/p/DIR823G-V1-0-2B05_20181207-37a1f5ba989080f2a043c60d2cfc7499?source=copy_linkExploitThird Party Advisory
- www.dlink.comProduct