CVE-2023-38944: An issue in Multilaser RE160V firmware v12.03.01.09_pt and Multilaser RE163V firmware v12.03.01.10_pt allows a

This week

CRITICAL 9.8REMOTEMITIGATEMITIGATE

CVE-2023-38944 is a critical-severity flaw (CVSS 9.8) affecting re160v firmware, re163v firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Multilaser RE160V firmware v12.03.01.09_pt and Multilaser RE163V firmware v12.03.01.10_pt allows attackers to bypass the access control and gain complete access to the application via modifying a HTTP header.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	15.5% (top 3%)
CISA exploited list	No
Weakness	CWE-269
Published	2024-03-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: multilaser

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

Am I affected?

Timeline

2024-03-06 00:15 UTCPublished CVE record published
2026-06-17 06:11 UTCUpdated Record last modified

multilaser re160v firmware MITIGATE

Affected: 12.03.01.09_pt

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.03.01.09_pt

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.

multilaser re163v firmware MITIGATE

Affected: 12.03.01.10_pt

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.03.01.10_pt

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · sbcl · FIXED · 2.6.10-1.fc46 · FEDORA-2026-feab1a81c6 · source

sudo dnf upgrade --advisory=FEDORA-2026-feab1a81c6

Fedora ELN · python-archspec · FIXED · 0.2.7-1.eln159 · FEDORA-2026-e2a8272db6 · source

sudo dnf upgrade --advisory=FEDORA-2026-e2a8272db6

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-2023-38944?

re160v firmware: mitigate or apply the listed mitigation; re163v firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-38944 being exploited?

CVE-2023-38944 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-2023-38944 affect?

CVE-2023-38944 affects re160v firmware, re163v firmware. Severity is critical (CVSS 9.8). An issue in Multilaser RE160V firmware v12.03.01.09_pt and Multilaser RE163V firmware v12.03.01.10_pt allows attackers to bypass the access control and gain complete access to the application via modifying a HTTP header.

How urgent is CVE-2023-38944?

Priority 72/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-38945 CRITICAL 9.8 MITIGATE MITIGATE Multilaser RE160 v5.07.51_pt_MTL01 and v5.07.52_pt_MTL01, Multilaser RE160V v12.03.01.08_pt and V12.03.01.09_p

References

← Back to latest CVEs