CVE-2022-48108: D-Link DIR_878_FW1.30B08 was discovered to contain a command injection vulnerability via the component /SetNet

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2022-48108 is a critical-severity flaw (CVSS 9.8) affecting dir 878 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

D-Link DIR_878_FW1.30B08 was discovered to contain a command injection vulnerability via the component /SetNetworkSettings/SubnetMask. This vulnerability allows attackers to escalate privileges to root via a crafted payload.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Weakness	CWE-78
Published	2023-01-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-27 21:15 UTCPublished CVE record published
2026-06-17 05:14 UTCUpdated Record last modified

dlink dir 878 firmware MITIGATE

Affected: 1.30b08

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.30b08

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-2022-48108?

dir 878 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-48108 being exploited?

CVE-2022-48108 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-2022-48108 affect?

CVE-2022-48108 affects dir 878 firmware. Severity is critical (CVSS 9.8). D-Link DIR_878_FW1.30B08 was discovered to contain a command injection vulnerability via the component /SetNetworkSettings/SubnetMask. This vulnerability allows attackers to escalate privileges to root via a crafted payload.

How urgent is CVE-2022-48108?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

D-Link vulnerabilities

Related CVEs

CVE-2022-48107 CRITICAL 9.8 MITIGATE D-Link DIR_878_FW1.30B08 was discovered to contain a command injection vulnerability via the component /setnet

References

← Back to latest CVEs