How severe is CVE-2021-27448?

CVE-2021-27448 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27448 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27448?

CVE-2021-27448 affects Ge Mu320e Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27448?

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.

When was CVE-2021-27448 published?

CVE-2021-27448 was published on 2021-03-25 and last updated on 2026-06-17.

CVE-2021-27448

CVE-2021-27448 is a high-severity vulnerability in Ge Mu320e Firmware with a CVSS 3.x base score of 7.8. 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-269.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Ge Mu320e Firmware
Published: 2021-03-25
Last modified: 2026-06-17

Description

A miscommunication in the file system allows adversaries with access to the MU320E to escalate privileges on the MU320E (all firmware versions prior to v04A00.1).

Frequently asked questions

What is CVE-2021-27448?: A miscommunication in the file system allows adversaries with access to the MU320E to escalate privileges on the MU320E (all firmware versions prior to v04A00.1).
How severe is CVE-2021-27448?: CVE-2021-27448 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27448 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27448?: CVE-2021-27448 affects Ge Mu320e Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27448?: 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.
When was CVE-2021-27448 published?: CVE-2021-27448 was published on 2021-03-25 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-082-02

Affected products (1)

cpe:2.3:o:ge:mu320e_firmware:*:*:*:*:*:*:*:*

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