How severe is CVE-2022-27538?

CVE-2022-27538 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-27538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27538?

CVE-2022-27538 primarily affects Hp Dragonfly Folio G3 2-in-1 Firmware. In total, 317 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-27538?

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-2022-27538 published?

CVE-2022-27538 was published on 2023-02-01 and last updated on 2026-06-17.

CVE-2022-27538

CVE-2022-27538 is a high-severity vulnerability in Hp Dragonfly Folio G3 2-in-1 Firmware with a CVSS 3.x base score of 7.0. 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-367.

Key facts

Severity: High (CVSS 3.x base score 7.0)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Hp Dragonfly Folio G3 2-in-1 Firmware
Published: 2023-02-01
Last modified: 2026-06-17

Description

A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in the BIOS for certain HP PC products which may allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.

Frequently asked questions

What is CVE-2022-27538?: A potential Time-of-Check to Time-of-Use (TOCTOU) vulnerability has been identified in the BIOS for certain HP PC products which may allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.
How severe is CVE-2022-27538?: CVE-2022-27538 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-27538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27538?: CVE-2022-27538 primarily affects Hp Dragonfly Folio G3 2-in-1 Firmware. In total, 317 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-27538?: 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-2022-27538 published?: CVE-2022-27538 was published on 2023-02-01 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_7387020-7387107-16/hpsbhf03827

Affected products (317)

cpe:2.3:o:hp:dragonfly_folio_g3_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_dragonfly_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_dragonfly_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_dragonfly_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_dragonfly_max_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_1013_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_g8_tablet_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x360_1040_g9_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_1040_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_1050_g1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_630_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_640_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_645_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_650_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_655_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_735_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_735_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_745_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_745_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_755_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_830_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_830_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_830_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_830_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_830_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_835_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_835_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_835_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_836_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_836_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_aero_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g5_healthcare_edition_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g6_healthcare_edition_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840r_g4_firmware:*:*:*:*:*:*:*:*

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