CVE-2023-31746: There is a command injection vulnerability in the adslr VW2100 router with firmware version M1DV1.0

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CRITICAL 9.8REMOTEMITIGATE

CVE-2023-31746 is a critical-severity flaw (CVSS 9.8) affecting vw2100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

There is a command injection vulnerability in the adslr VW2100 router with firmware version M1DV1.0. An unauthenticated attacker can exploit the vulnerability to execute system commands as the root user.

Why this priority

Critical severity
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-77
Published	2023-06-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: adslr

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

Am I affected?

Timeline

2023-06-14 21:15 UTCPublished CVE record published
2026-06-17 05:57 UTCUpdated Record last modified

adslr vw2100 firmware MITIGATE

Affected: m1dv1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before m1dv1.0

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-2023-31746?

vw2100 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-31746 being exploited?

CVE-2023-31746 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-2023-31746 affect?

CVE-2023-31746 affects vw2100 firmware. Severity is critical (CVSS 9.8). There is a command injection vulnerability in the adslr VW2100 router with firmware version M1DV1.0. An unauthenticated attacker can exploit the vulnerability to execute system commands as the root user.

How urgent is CVE-2023-31746?

Priority 61/100. Critical severity; Remotely exploitable, no login, no user action

References

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