How severe is CVE-2022-28722?

CVE-2022-28722 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-28722 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28722?

CVE-2022-28722 primarily affects Hp P4c78a Firmware. In total, 99 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-28722?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-28722 published?

CVE-2022-28722 was published on 2022-09-26 and last updated on 2026-06-17.

CVE-2022-28722

CVE-2022-28722 is a critical-severity vulnerability in Hp P4c78a Firmware with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Hp P4c78a Firmware
Published: 2022-09-26
Last modified: 2026-06-17

Description

Certain HP Print Products are potentially vulnerable to Buffer Overflow.

Frequently asked questions

What is CVE-2022-28722?: Certain HP Print Products are potentially vulnerable to Buffer Overflow.
How severe is CVE-2022-28722?: CVE-2022-28722 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-28722 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28722?: CVE-2022-28722 primarily affects Hp P4c78a Firmware. In total, 99 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-28722?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-28722 published?: CVE-2022-28722 was published on 2022-09-26 and last updated on 2026-06-17.

References

https://support.hp.com/us-en/document/ish_6839789-6839813-16/hpsbpi03810

Affected products (99)

cpe:2.3:o:hp:p4c78a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:p4c85a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t3p03a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:p4c86a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:p4c81a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:p4c82a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:p4c84a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0g25a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0g26a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k33a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f30a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f32a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f38a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f31a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k37a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k38a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k35a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k39a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f28a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f36a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k34a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f33a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f39a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f34a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f35a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k40a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k36a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k42a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:j7k41a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f29a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f37a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t0f40a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:g5j56a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:y0s18a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:l3t99a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:y0s19a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:g5j38a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:t1p99a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:d9l63a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:hp:d9l64a_firmware:*:*:*:*:*:*:*:*

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