CVE-2026-15270: A weakness has been identified in D-link DIR-823G 1.0.2B05_20181207

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HIGH 7.5MITIGATE

CVE-2026-15270 is a high-severity flaw (CVSS 7.5) affecting dir-823g firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 f

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-266, CWE-272
Published	2026-07-09
Last modified	2026-10-25

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-09 20:16 UTCPublished CVE record published
2026-10-25 17:10 UTCUpdated Record last modified

dlink dir-823g firmware MITIGATE

Affected: 1.0.2b05_20181207

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.2b05_20181207

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-15270?

dir-823g firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-15270 being exploited?

CVE-2026-15270 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-15270 affect?

CVE-2026-15270 affects dir-823g firmware. Severity is high (CVSS 7.5). 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 privile

How urgent is CVE-2026-15270?

Priority 41/100. High severity

Software pages

D-Link vulnerabilities

References

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