How severe is CVE-2026-48581?

CVE-2026-48581 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-2026-48581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48581?

CVE-2026-48581 primarily affects Microsoft Surface Go 2 1901 Firmware. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-48581?

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-2026-48581 published?

CVE-2026-48581 was published on 2026-07-14 and last updated on 2026-07-24.

CVE-2026-48581

CVE-2026-48581 is a high-severity vulnerability in Microsoft Surface Go 2 1901 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-1220.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1220
Affected product: Microsoft Surface Go 2 1901 Firmware
Published: 2026-07-14
Last modified: 2026-07-24

Description

Insufficient granularity of access control in Microsoft Surface allows an authorized attacker to elevate privileges locally.

Frequently asked questions

What is CVE-2026-48581?: Insufficient granularity of access control in Microsoft Surface allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-48581?: CVE-2026-48581 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-2026-48581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48581?: CVE-2026-48581 primarily affects Microsoft Surface Go 2 1901 Firmware. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-48581?: 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-2026-48581 published?: CVE-2026-48581 was published on 2026-07-14 and last updated on 2026-07-24.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48581

Affected products (27)

cpe:2.3:o:microsoft:surface_go_2_1901_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_go_2_1926_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_go_2_1927_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_go_3_1901_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_go_3_1926_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_go_3_2022_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_hub_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_hub_2s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_hub_2s_85_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_hub_3_50_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_hub_3_85_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_go_1943_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_go_2_2013_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_go_3_2013_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_pro_7\+_1960_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_pro_7\+_with_lte_advanced_1961_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_pro_8_1983_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_pro_8_for_business_1983_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_pro_8_for_business_with_lte_advanced_1982_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1979_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1950_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1951_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1952_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1953_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1958_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1959_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:surface_laptop_4_1978_firmware:-:*:*:*:*:*:*:*

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