CVE-2026-70464

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — Patch released this week
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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 (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
45th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 13, 2026

Last Modified

September 8, 2026

Advisory Details (3)

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

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 advisoryMentions a patch (unverified)

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

Vendor Advisories for CVE-2026-70464(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcostmanagement/costmanagement-ui-rhel10:17914608512026-10-08redhat
redhatrsync-0:3.1.3-28.el8_102026-09-30redhat
redhatopenshift/ose-rhel-coreos-9:4.22.9.8.202609221802-02026-09-29redhat
redhatrsync-0:3.5.0-3.el10_22026-09-14redhat
redhatrsync-0:3.2.7-1.el9_82026-09-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.5.0-r0: fixed in 3.5.0-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.2.7-1 ... 3.5.1+ds1-1 (32 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (13 versions)
  • every version up to 3.5.0+ds1-0+deb13u1: fixed in 3.5.0+ds1-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (9 versions)
  • every version up to 3.5.0+ds1-1: fixed in 3.5.0+ds1-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 87× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 187 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 87 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  2. 2026-10-13 09:01 UTCEG score recompute
  3. 2026-10-13 09:01 UTCVendor advisory
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  5. 2026-10-12 15:43 UTCEG score recompute
  6. 2026-10-11 19:29 UTCEG score recompute
  7. 2026-10-11 16:44 UTCEG score recompute
  8. 2026-10-11 14:05 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  12. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  14. 2026-10-07 01:20 UTCEG score recompute
  15. 2026-10-07 01:20 UTCVendor advisory
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  17. 2026-10-06 13:23 UTCEG score recompute
  18. 2026-10-06 13:23 UTCVendor advisory
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  20. 2026-10-05 14:38 UTCEG score recompute
  21. 2026-10-05 14:38 UTCVendor advisory
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  23. 2026-10-04 22:21 UTCVendor advisory
  24. 2026-10-04 06:59 UTCVendor advisory
  25. 2026-10-03 19:49 UTCEG score recompute
Show 75 more
  1. 2026-10-03 19:49 UTCVendor advisory
  2. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-10-02 18:59 UTCEG score recompute
  4. 2026-10-02 18:59 UTCVendor advisory
  5. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  6. 2026-10-02 07:34 UTCEG score recompute
  7. 2026-10-02 07:34 UTCVendor advisory
  8. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  9. 2026-10-01 08:57 UTCVendor advisory
  10. 2026-09-30 21:47 UTCEG score recompute
  11. 2026-09-30 21:47 UTCVendor advisory
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  13. 2026-09-29 04:05 UTCEG score recompute
  14. 2026-09-29 04:05 UTCVendor advisory
  15. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  16. 2026-09-28 12:15 UTCVendor advisory
  17. 2026-09-28 00:47 UTCEG score recompute
  18. 2026-09-28 00:47 UTCVendor advisory
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  20. 2026-09-27 09:44 UTCEG score recompute
  21. 2026-09-27 09:44 UTCVendor advisory
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  23. 2026-09-25 03:33 UTCEG score recompute
  24. 2026-09-25 03:33 UTCVendor advisory
  25. 2026-09-24 08:05 UTCVendor advisory
  26. 2026-09-23 20:50 UTCEG score recompute
  27. 2026-09-23 20:50 UTCVendor advisory
  28. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  29. 2026-09-23 08:12 UTCVendor advisory
  30. 2026-09-22 21:01 UTCEG score recompute
  31. 2026-09-22 21:01 UTCVendor advisory
  32. 2026-09-22 07:56 UTCEG score recompute
  33. 2026-09-22 07:56 UTCVendor advisory
  34. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  35. 2026-09-21 20:45 UTCVendor advisory
  36. 2026-09-21 09:31 UTCVendor advisory
  37. 2026-09-20 21:35 UTCEG score recompute
  38. 2026-09-20 21:35 UTCVendor advisory
  39. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  40. 2026-09-20 10:21 UTCVendor advisory
  41. 2026-09-19 23:10 UTCEG score recompute
  42. 2026-09-19 23:10 UTCVendor advisory
  43. 2026-09-19 11:13 UTCVendor advisory
  44. 2026-09-18 22:52 UTCEG score recompute
  45. 2026-09-18 22:52 UTCVendor advisory
  46. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  47. 2026-09-18 11:40 UTCVendor advisory
  48. 2026-09-18 00:29 UTCEG score recompute
  49. 2026-09-18 00:29 UTCVendor advisory
  50. 2026-09-17 12:04 UTCVendor advisory
  51. 2026-09-17 00:00 UTCEG score recompute
  52. 2026-09-17 00:00 UTCVendor advisory
  53. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  54. 2026-09-16 10:32 UTCEG score recompute
  55. 2026-09-16 10:32 UTCVendor advisory
  56. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  57. 2026-09-15 21:55 UTCVendor advisory
  58. 2026-09-15 09:44 UTCEG score recompute
  59. 2026-09-15 09:44 UTCVendor advisory
  60. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  61. 2026-09-14 22:33 UTCVendor advisory
  62. 2026-09-14 11:22 UTCVendor advisory
  63. 2026-09-14 00:11 UTCEG score recompute
  64. 2026-09-14 00:11 UTCVendor advisory
  65. 2026-09-13 13:00 UTCVendor advisory
  66. 2026-09-13 01:49 UTCEG score recompute
  67. 2026-09-13 01:49 UTCVendor advisory
  68. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  69. 2026-09-12 14:38 UTCVendor advisory
  70. 2026-09-12 03:28 UTCVendor advisory
  71. 2026-09-11 16:17 UTCEG score recompute
  72. 2026-09-11 16:17 UTCVendor advisory
  73. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  74. 2026-09-10 17:41 UTCEG score recompute
  75. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile

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Frequently asked(5)

What is CVE-2026-70464?
CVE-2026-70464 is a high-severity vulnerability; its CVE record was 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 made public?
CVE-2026-70464 was made public on August 12, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 13, 2026. EchelonGraph's copy of the record carries a last-modified date of September 8, 2026; the record at its source may have been updated since.
Is CVE-2026-70464 actively exploited?
CVE-2026-70464 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70464?
CVE-2026-70464 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70464?
A fix for CVE-2026-70464 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70464 are linked in the Vendor Advisories panel on this page.

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