CVE-2026-49203: Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing r

Q: How do I fix CVE-2026-49203?

connect m6e 5g firmware: upgrade to newer than m6e_ai_1.00.000019. Exact commands for each OS are on this page.

Q: Is CVE-2026-49203 being exploited?

CVE-2026-49203 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-49203 affect?

CVE-2026-49203 affects connect m6e 5g firmware. Severity is high (CVSS 8.3). Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.

Routine

HIGH 8.3UPGRADE

CVE-2026-49203 is a high-severity flaw (CVSS 8.3) affecting connect m6e 5g firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.3 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-06-04
Last modified	2026-07-22

Publisher (CNA): Acer · Vendor: acer

Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-04 07:16 UTCPublished CVE record published
2026-07-22 20:10 UTCUpdated Record last modified

acer connect m6e 5g firmware UPGRADE

Affected: <= m6e_ai_1.00.000019

Fixed in: newer than m6e_ai_1.00.000019

Safe to downgrade to: no unaffected older release

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-2026-49203?

connect m6e 5g firmware: upgrade to newer than m6e_ai_1.00.000019. Exact commands for each OS are on this page.

Is CVE-2026-49203 being exploited?

CVE-2026-49203 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-2026-49203 affect?

CVE-2026-49203 affects connect m6e 5g firmware. Severity is high (CVSS 8.3). Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.

How urgent is CVE-2026-49203?

Priority 31/100. High severity

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References

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