How severe is CVE-2023-26300?

CVE-2023-26300 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-2023-26300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26300?

CVE-2023-26300 primarily affects Hp Desktop Pro A 300 G3 Firmware. In total, 89 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26300?

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-2023-26300 published?

CVE-2023-26300 was published on 2023-10-18 and last updated on 2026-06-17.

CVE-2023-26300

CVE-2023-26300 is a high-severity vulnerability in Hp Desktop Pro A 300 G3 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.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp Desktop Pro A 300 G3 Firmware
Published: 2023-10-18
Last modified: 2026-06-17

Description

A potential security vulnerability has been identified in the system BIOS for certain HP PC products which might allow escalation of privilege. HP is releasing firmware updates to mitigate the potential vulnerability.

Frequently asked questions

What is CVE-2023-26300?: A potential security vulnerability has been identified in the system BIOS for certain HP PC products which might allow escalation of privilege. HP is releasing firmware updates to mitigate the potential vulnerability.
How severe is CVE-2023-26300?: CVE-2023-26300 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-2023-26300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26300?: CVE-2023-26300 primarily affects Hp Desktop Pro A 300 G3 Firmware. In total, 89 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26300?: 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-2023-26300 published?: CVE-2023-26300 was published on 2023-10-18 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_9461800-9461828-16

Affected products (89)

cpe:2.3:o:hp:desktop_pro_a_300_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:desktop_pro_a_g3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:desktop_pro_a_g3_microtower_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zhan_66_pro_a_g1_r_microtower_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t638_thin_client_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:stream_11_pro_g5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:240_g10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:240_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:240_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:240_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:245_g10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:245_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:245_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:245_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:245_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:246_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:246_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:247_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:250_g10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:250_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:250_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:250_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:255_g10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:255_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:255_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:255_g8_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:255_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:256_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:256_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:258_g6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:258_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:340_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:348_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:470_g10_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:470_g7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:470_g9_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:stream_11_pro_g4_firmware:*:*:*:*:education:*:*:*
cpe:2.3:o:hp:zbook_15_g5_mobile_workstation_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zhan_99_g3_mobile_workstation_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:zhan_99_g4_mobile_workstation_firmware:*:*:*:*:*:*:*:*

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