How severe is CVE-2026-49203?

CVE-2026-49203 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2026-49203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49203?

CVE-2026-49203 affects Acer Connect M6e 5g Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49203?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-49203 have an EU (EUVD) identifier?

Yes. CVE-2026-49203 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34214.

When was CVE-2026-49203 published?

CVE-2026-49203 was published on 2026-06-04 and last updated on 2026-07-22.

CVE-2026-49203

CVE-2026-49203 is a high-severity vulnerability in Acer Connect M6e 5g Firmware with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v4: 7.2
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34214
Weakness: CWE-287
Affected product: Acer Connect M6e 5g Firmware
Published: 2026-06-04
Last modified: 2026-07-22

Description

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

Frequently asked questions

What is CVE-2026-49203?: Crucial management API endpoints for cellular eSIM allocation do not validate caller authorization, allowing remote profiles to be rewritten or deleted.
How severe is CVE-2026-49203?: CVE-2026-49203 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2026-49203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49203?: CVE-2026-49203 affects Acer Connect M6e 5g Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-49203 have an EU (EUVD) identifier?: Yes. CVE-2026-49203 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34214.
When was CVE-2026-49203 published?: CVE-2026-49203 was published on 2026-06-04 and last updated on 2026-07-22.

References

https://community.acer.com/en/kb/articles/19707

Affected products (1)

cpe:2.3:o:acer:connect_m6e_5g_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Acer Connect M6e 5g Firmware

CVE-2026-50214 — Critical (CVSS 9.8): The /v1/Plan service relies entirely on a shared global API token for full administrative management, allowing…
CVE-2026-50211 — Critical (CVSS 9.8): Leftover engineering diagnostics and factory-level diagnostic software remain exposed on retail builds, giving…
CVE-2026-49191 — Critical (CVSS 9.8): The production build of the M3WebServer hard-codes its backend API keys, which can be easily intercepted through…
CVE-2026-49188 — Critical (CVSS 9.8): The ai_cmd utility executes with full root permissions. It pipes socket inputs directly to popen(), paving the way…
CVE-2026-49186 — Critical (CVSS 9.8): The local MQTT broker does not enforce topic-level Access Control Lists (ACLs). This allows any client to subscribe…
CVE-2026-49185 — Critical (CVSS 9.8): The FieldX MDM adb messaging topic passes unverified payloads directly into Runtime.exec(), allowing…

All CVEs affecting Acer Connect M6e 5g Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-101077 — Critical (CVSS 10.0): A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp…
CVE-2026-100886 — Critical (CVSS 10.0): A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected…
CVE-2026-77244 — Critical (CVSS 10.0): MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0,…
CVE-2026-94493 — Critical (CVSS 10.0): A vulnerability was detected in Gigatech PDV5701 1.0.31_240305_112640. This issue affects some unknown processing of…
CVE-2026-83099 — Critical (CVSS 10.0): Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode).…
CVE-2026-83059 — Critical (CVSS 10.0): Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server).…

Browse all CWE-287 (Improper Authentication) vulnerabilities →