How severe is CVE-2021-22055?

CVE-2021-22055 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-22055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22055?

CVE-2021-22055 affects Vmware Photon Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22055?

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

When was CVE-2021-22055 published?

CVE-2021-22055 was published on 2022-04-11 and last updated on 2026-06-17.

CVE-2021-22055

CVE-2021-22055 is a medium-severity vulnerability in Vmware Photon Os with a CVSS 3.x base score of 5.3. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Vmware Photon Os
Published: 2022-04-11
Last modified: 2026-06-17

Description

The SchedulerServer in Vmware photon allows remote attackers to inject logs through \r in the package parameter. Attackers can also insert malicious data and fake entries.

Frequently asked questions

What is CVE-2021-22055?: The SchedulerServer in Vmware photon allows remote attackers to inject logs through \r in the package parameter. Attackers can also insert malicious data and fake entries.
How severe is CVE-2021-22055?: CVE-2021-22055 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-22055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22055?: CVE-2021-22055 affects Vmware Photon Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22055?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22055 published?: CVE-2021-22055 was published on 2022-04-11 and last updated on 2026-06-17.

References

https://github.com/vmware/photon/wiki/log_injection_vulnerability

Affected products (1)

cpe:2.3:o:vmware:photon_os:*:*:*:*:*:*:*:*

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