How severe is CVE-2023-5409?

CVE-2023-5409 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-5409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5409?

CVE-2023-5409 primarily affects Hp T430 Thin Client Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-5409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-5409 published?

CVE-2023-5409 was published on 2023-10-13 and last updated on 2026-06-17.

CVE-2023-5409

CVE-2023-5409 is a medium-severity vulnerability in Hp T430 Thin Client Firmware with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hp T430 Thin Client Firmware
Published: 2023-10-13
Last modified: 2026-06-17

Description

HP is aware of a potential security vulnerability in HP t430 and t638 Thin Client PCs. These models may be susceptible to a physical attack, allowing an untrusted source to tamper with the system firmware using a publicly disclosed private key. HP is providing recommended guidance for customers to reduce exposure to the potential vulnerability.

Frequently asked questions

What is CVE-2023-5409?: HP is aware of a potential security vulnerability in HP t430 and t638 Thin Client PCs. These models may be susceptible to a physical attack, allowing an untrusted source to tamper with the system firmware using a publicly disclosed private key. HP is providing recommended guidance for customers to reduce exposure to the potential vulnerability.
How severe is CVE-2023-5409?: CVE-2023-5409 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-5409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5409?: CVE-2023-5409 primarily affects Hp T430 Thin Client Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-5409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5409 published?: CVE-2023-5409 was published on 2023-10-13 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_9441200-9441233-16

Affected products (2)

cpe:2.3:o:hp:t430_thin_client_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:hp:t638_thin_client_firmware:-:*:*:*:*:*:*:*

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