CVE-2026-70464

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.6%, top 55% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:vulncheck, epss
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous connections and trickle data at the minimum rate to avoid timeout, or stall entirely before module selection where no timeout applies, consuming all available connection slots and denying service to legitimate clients.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Aug 13, 2026
Patch available. Sources: github_release, github.
generic

rsync 2.0.0 < 3.5.0 Connection Slot Exhaustion DoS via Handshake Stall | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-connection-slot-exhaustion-dos-via-handshake-stall
github_release Patch Available

v3.5.0

Patch available: RsyncProject/rsync v3.5.0

https://github.com/RsyncProject/rsync/releases/tag/v3.5.0
github Patch Available

rsync: Unauthenticated pre-transfer handshake DoS locks out an rsync daemon module · Advisory · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/security/advisories/GHSA-hrwq-ccf7-rw5m

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 21× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 20:27 UTCVendor advisory
  3. 2026-08-29 07:41 UTCEG score recompute
  4. 2026-08-29 07:41 UTCVendor advisory
  5. 2026-08-28 21:42 UTCEPSS rescore
  6. 2026-08-28 07:09 UTCVendor advisory
  7. 2026-08-27 19:33 UTCEG score recompute
  8. 2026-08-27 19:33 UTCVendor advisory
  9. 2026-08-27 07:23 UTCVendor advisory
  10. 2026-08-26 20:12 UTCEG score recompute
  11. 2026-08-26 20:12 UTCVendor advisory
  12. 2026-08-26 14:47 UTCEPSS rescore
  13. 2026-08-26 08:57 UTCVendor advisory
  14. 2026-08-25 21:46 UTCEG score recompute
  15. 2026-08-25 21:46 UTCVendor advisory
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-25 10:24 UTCVendor advisory
  18. 2026-08-24 23:13 UTCEG score recompute
  19. 2026-08-24 23:13 UTCVendor advisory
  20. 2026-08-24 12:02 UTCEG score recompute
  21. 2026-08-24 12:02 UTCVendor advisory
  22. 2026-08-23 02:29 UTCEG score recompute
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 04:07 UTCEG score recompute
  25. 2026-08-21 23:49 UTCEPSS rescore
Show 23 more
  1. 2026-08-21 05:45 UTCEG score recompute
  2. 2026-08-20 22:56 UTCEPSS rescore
  3. 2026-08-19 20:12 UTCEG score recompute
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-18 21:46 UTCEG score recompute
  6. 2026-08-18 13:49 UTCEPSS rescore
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-17 23:25 UTCEG score recompute
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-17 01:03 UTCEG score recompute
  11. 2026-08-16 14:56 UTCEPSS rescore
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 02:41 UTCEG score recompute
  14. 2026-08-16 02:15 UTCEPSS rescore
  15. 2026-08-15 04:20 UTCEG score recompute
  16. 2026-08-15 01:31 UTCEPSS rescore
  17. 2026-08-14 17:08 UTCEG score recompute
  18. 2026-08-14 16:32 UTCEG score recompute
  19. 2026-08-14 16:04 UTCEG score recompute
  20. 2026-08-14 13:14 UTCEG score recompute
  21. 2026-08-13 15:23 UTCEG score recompute
  22. 2026-08-13 15:12 UTCEG score recompute
  23. 2026-08-13 15:11 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-70464?
CVE-2026-70464 is a high vulnerability published on August 13, 2026. rsync daemon 2.0.0 before 3.5.0 contains a denial of service vulnerability that allows unauthenticated remote attackers to exhaust daemon connection slots by stalling the handshake process before or after module selection without triggering the I/O timeout. Attackers can open many simultaneous…
When was CVE-2026-70464 disclosed?
CVE-2026-70464 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70464 actively exploited?
CVE-2026-70464 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.2% of all scored CVEs.
What is the CVSS score of CVE-2026-70464?
CVE-2026-70464 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-70464?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70464, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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