How severe is CVE-2023-4138?

CVE-2023-4138 has a CVSS 3.x base score of 6.5, 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 low.

Is CVE-2023-4138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4138?

CVE-2023-4138 affects Ikus-soft Rdiffweb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4138?

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

When was CVE-2023-4138 published?

CVE-2023-4138 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-4138

CVE-2023-4138 is a medium-severity vulnerability in Ikus-soft Rdiffweb 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Ikus-soft Rdiffweb
Published: 2023-08-03
Last modified: 2026-06-17

Description

Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.8.0.

Frequently asked questions

What is CVE-2023-4138?: Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.8.0.
How severe is CVE-2023-4138?: CVE-2023-4138 has a CVSS 3.x base score of 6.5, 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 low.
Is CVE-2023-4138 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4138?: CVE-2023-4138 affects Ikus-soft Rdiffweb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4138?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4138 published?: CVE-2023-4138 was published on 2023-08-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ikus-soft:rdiffweb:*:*:*:*:*:*:*:*

More vulnerabilities in Ikus-soft Rdiffweb

CVE-2022-4724 — Critical (CVSS 9.8): Improper Access Control in GitHub repository ikus060/rdiffweb prior to 2.5.5.
CVE-2022-4719 — Critical (CVSS 9.8): Business Logic Errors in GitHub repository ikus060/rdiffweb prior to 2.5.5.
CVE-2022-4314 — Critical (CVSS 9.8): Improper Privilege Management in GitHub repository ikus060/rdiffweb prior to 2.5.2.
CVE-2022-3362 — Critical (CVSS 9.8): Insufficient Session Expiration in GitHub repository ikus060/rdiffweb prior to 2.5.0.
CVE-2022-3363 — Critical (CVSS 9.8): Business Logic Errors in GitHub repository ikus060/rdiffweb prior to 2.5.0a7.
CVE-2022-3327 — Critical (CVSS 9.8): Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.

All CVEs affecting Ikus-soft Rdiffweb →

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CVE-2022-3439 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

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