How severe is CVE-2021-43550?

CVE-2021-43550 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2021-43550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43550?

CVE-2021-43550 primarily affects Philips Patient Information Center Ix. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-43550?

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

When was CVE-2021-43550 published?

CVE-2021-43550 was published on 2021-12-27 and last updated on 2026-06-17.

CVE-2021-43550

CVE-2021-43550 is a medium-severity vulnerability in Philips Patient Information Center Ix with a CVSS 3.x base score of 5.9. 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-327.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 3.3
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Philips Patient Information Center Ix
Published: 2021-12-27
Last modified: 2026-06-17

Description

The use of a broken or risky cryptographic algorithm is an unnecessary risk that may result in the exposure of sensitive information, which affects the communications between Patient Information Center iX (PIC iX) Versions C.02 and C.03 and Efficia CM Series Revisions A.01 to C.0x and 4.0.

Frequently asked questions

What is CVE-2021-43550?: The use of a broken or risky cryptographic algorithm is an unnecessary risk that may result in the exposure of sensitive information, which affects the communications between Patient Information Center iX (PIC iX) Versions C.02 and C.03 and Efficia CM Series Revisions A.01 to C.0x and 4.0.
How severe is CVE-2021-43550?: CVE-2021-43550 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2021-43550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43550?: CVE-2021-43550 primarily affects Philips Patient Information Center Ix. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-43550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43550 published?: CVE-2021-43550 was published on 2021-12-27 and last updated on 2026-06-17.

References

https://www.cisa.gov/uscert/ics/advisories/icsma-21-322-02

Affected products (4)

cpe:2.3:a:philips:patient_information_center_ix:c.02:*:*:*:*:*:*:*
cpe:2.3:a:philips:patient_information_center_ix:c.03:*:*:*:*:*:*:*
cpe:2.3:o:philips:efficia_cm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:philips:efficia_cm_firmware:4.0:*:*:*:*:*:*:*

More vulnerabilities in Philips Patient Information Center Ix

CVE-2020-16222 — High (CVSS 8.8): In Patient Information Center iX (PICiX) Version B.02, C.02, C.03, and PerformanceBridge Focal Point Version A.01,…
CVE-2020-16212 — Medium (CVSS 6.8): In Patient Information Center iX (PICiX) Versions B.02, C.02, C.03, the product exposes a resource to the wrong control…
CVE-2021-43548 — Medium (CVSS 6.5): Patient Information Center iX (PIC iX) Versions C.02 and C.03 receives input or data, but does not validate or…
CVE-2020-16224 — Medium (CVSS 6.5): In Patient Information Center iX (PICiX) Versions C.02, C.03, the software parses a formatted message or structure but…
CVE-2020-16216 — Medium (CVSS 6.5): In IntelliVue patient monitors MX100, MX400-550, MX600, MX700, MX750, MX800, MX850, MP2-MP90, and IntelliVue X2 and X3…
CVE-2020-16228 — Medium (CVSS 6.4): In Patient Information Center iX (PICiX) Versions C.02 and C.03, PerformanceBridge Focal Point Version A.01,…

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