How severe is CVE-2023-46278?

CVE-2023-46278 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-46278 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46278?

CVE-2023-46278 affects Cybozu Cybozu Remote Service. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46278?

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

When was CVE-2023-46278 published?

CVE-2023-46278 was published on 2023-11-01 and last updated on 2026-06-17.

CVE-2023-46278

CVE-2023-46278 is a medium-severity vulnerability in Cybozu Cybozu Remote Service with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Cybozu Cybozu Remote Service
Published: 2023-11-01
Last modified: 2026-06-17

Description

Uncontrolled resource consumption vulnerability in Cybozu Remote Service 4.1.0 to 4.1.1 allows a remote authenticated attacker to consume huge storage space or cause significantly delayed communication.

Frequently asked questions

What is CVE-2023-46278?: Uncontrolled resource consumption vulnerability in Cybozu Remote Service 4.1.0 to 4.1.1 allows a remote authenticated attacker to consume huge storage space or cause significantly delayed communication.
How severe is CVE-2023-46278?: CVE-2023-46278 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-46278 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46278?: CVE-2023-46278 affects Cybozu Cybozu Remote Service. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46278?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-46278 published?: CVE-2023-46278 was published on 2023-11-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cybozu:cybozu_remote_service:*:*:*:*:*:*:*:*

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