How severe is CVE-2022-48311?

CVE-2022-48311 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-48311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-48311?

CVE-2022-48311 affects Hp Deskjet 2540 A9u23b Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-48311?

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-2022-48311 published?

CVE-2022-48311 was published on 2023-02-06 and last updated on 2026-06-17.

CVE-2022-48311

CVE-2022-48311 is a critical-severity vulnerability in Hp Deskjet 2540 A9u23b Firmware with a CVSS 3.x base score of 9.0. 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-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Hp Deskjet 2540 A9u23b Firmware
Published: 2023-02-06
Last modified: 2026-06-17

Description

**UNSUPPORTED WHEN ASSIGNED** Cross Site Scripting (XSS) in HP Deskjet 2540 series printer Firmware Version CEP1FN1418BR and Product Model Number A9U23B allows authenticated attacker to inject their own script into the page via HTTP configuration page. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2022-48311?: **UNSUPPORTED WHEN ASSIGNED** Cross Site Scripting (XSS) in HP Deskjet 2540 series printer Firmware Version CEP1FN1418BR and Product Model Number A9U23B allows authenticated attacker to inject their own script into the page via HTTP configuration page. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2022-48311?: CVE-2022-48311 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-48311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-48311?: CVE-2022-48311 affects Hp Deskjet 2540 A9u23b Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-48311?: 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-2022-48311 published?: CVE-2022-48311 was published on 2023-02-06 and last updated on 2026-06-17.

References

https://github.com/swzhouu/CVE-2022-48311

Affected products (1)

cpe:2.3:o:hp:deskjet_2540_a9u23b_firmware:cep1fn1418br:*:*:*:*:*:*:*

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