How severe is CVE-2022-43777?

CVE-2022-43777 has a CVSS 3.x base score of 7.8, 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-2022-43777 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-2022-43777?

CVE-2022-43777 primarily affects Hp Zcentral 4r Workstation Firmware. In total, 387 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-43777?

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-2022-43777 published?

CVE-2022-43777 was published on 2023-06-12 and last updated on 2026-06-17.

CVE-2022-43777

CVE-2022-43777 is a high-severity vulnerability in Hp Zcentral 4r Workstation 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-367.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-367
Affected product: Hp Zcentral 4r Workstation Firmware
Published: 2023-06-12
Last modified: 2026-06-17

Description

Potential Time-of-Check to Time-of Use (TOCTOU) vulnerabilities have been identified in the HP BIOS for certain HP PC products which may allow arbitrary code execution, denial of service, and information disclosure.

Frequently asked questions

What is CVE-2022-43777?: Potential Time-of-Check to Time-of Use (TOCTOU) vulnerabilities have been identified in the HP BIOS for certain HP PC products which may allow arbitrary code execution, denial of service, and information disclosure.
How severe is CVE-2022-43777?: CVE-2022-43777 has a CVSS 3.x base score of 7.8, 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-2022-43777 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-2022-43777?: CVE-2022-43777 primarily affects Hp Zcentral 4r Workstation Firmware. In total, 387 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-43777?: 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-2022-43777 published?: CVE-2022-43777 was published on 2023-06-12 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_7709808-7709835-16/hpsbhf03835

Affected products (387)

cpe:2.3:o:hp:zcentral_4r_workstation_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:z1_all-in-one_g3_workstation_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_725_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_745_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_755_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_645_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_655_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:mt43_mobile_thin_client_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_1012_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_1040_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_820_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_828_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_840_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_848_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_850_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_x360_1020_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_x360_1030_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:pro_x2_612_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_455_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_640_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_650_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_14u_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_15_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_15u_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_17_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_studio_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zbook_x2_g4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_x360_11_g2_ee_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_725_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_745_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_755_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_455_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_645_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:probook_655_g2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_1012_g1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_1012_g1_tablet_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elite_x2_1012_g1_tablet_with_travel_keyboard_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_1030_g1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_1040_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:elitebook_820_g3_firmware:*:*:*:*:*:*:*:*

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CVE-2022-43778 — High (CVSS 7.8): Potential Time-of-Check to Time-of Use (TOCTOU) vulnerabilities have been identified in the HP BIOS for certain HP PC…

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