How severe is CVE-2022-27221?

CVE-2022-27221 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-27221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27221?

CVE-2022-27221 affects Siemens Sinema Remote Connect Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-27221?

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

When was CVE-2022-27221 published?

CVE-2022-27221 was published on 2022-06-14 and last updated on 2026-06-17.

CVE-2022-27221

CVE-2022-27221 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Siemens Sinema Remote Connect Server
Published: 2022-06-14
Last modified: 2026-06-17

Description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). An attacker in machine-in-the-middle could obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack.

Frequently asked questions

What is CVE-2022-27221?: A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). An attacker in machine-in-the-middle could obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack.
How severe is CVE-2022-27221?: CVE-2022-27221 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-27221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27221?: CVE-2022-27221 affects Siemens Sinema Remote Connect Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-27221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-27221 published?: CVE-2022-27221 was published on 2022-06-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*

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