What is CVE-2022-3439?

CVE-2022-3439 is a critical-severity vulnerability in Ikus060 Ikus060/rdiffweb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 9.8/10. Published 2022-10-14.

How severe is CVE-2022-3439?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-3439 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Ikus060 Ikus060/rdiffweb

CVE-2022-3439

Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

Published 2022-10-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Ikus060 Ikus060/rdiffweb — versions unspecified
Ikus-Soft Rdiffweb

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

References

github.com/ikus060/rdiffweb/commit/b78ec09f4582e363f6f449df6f987127e126c311 (Patch, Third Party Advisory)
huntr.dev/bounties/37b86c45-b240-4626-bd53-b6f02d10e0d7 (Permissions Required, Third Party Advisory)

Frequently asked questions

What is CVE-2022-3439?: CVE-2022-3439 is a critical-severity vulnerability in Ikus060 Ikus060/rdiffweb, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 9.8/10. Published 2022-10-14.
How severe is CVE-2022-3439?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-3439 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.