CVE-2026-70462

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% 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: epss, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

rsync 3.1.0 before 3.5.0 contains a signed integer overflow vulnerability in the I/O timeout implementation that allows attackers to permanently disable connection timeouts by injecting MSG_IO_TIMEOUT messages carrying non-positive (zero or negative) values. Attackers can craft malicious MSG_IO_TIMEOUT messages that cause the timeout variable to wrap to a non-positive value, preventing the timeout check from firing and enabling idle or stalled connections to hold daemon slots indefinitely, leading to resource exhaustion.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 13, 2026

Last Modified

September 8, 2026

Advisory Details (3)

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

rsync 3.1.0 < 3.5.0 Signed Integer Overflow via MSG_IO_TIMEOUT | Advisories | VulnCheck

https://www.vulncheck.com/advisories/rsync-signed-integer-overflow-via-msg-io-timeout
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: Peer-supplied MSG_IO_TIMEOUT defeats the client's own I/O timeout (signed overflow, and a non-positive value) · Advisory · RsyncProject/rsync · GitHub

https://github.com/RsyncProject/rsync/security/advisories/GHSA-j9wh-5jmp-2m64

Affected Packages

(7 across 7 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
rsync—3.5.0-r0—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rsync3.2.7-1 ... 3.5.0+ds1-2 (30 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rsync3.4.1+ds1-5 ... 3.5.0+ds1-2 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rsync3.4.1+ds1-5 ... 3.4.4+ds1-1 (9 versions)3.5.0+ds1-1—

Weakness Classification(2)

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 18× in last 7d / 70× 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. 2026-09-19 14:38 UTCEG score recompute
  2. 2026-09-19 14:38 UTCVendor advisory
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 13:12 UTCEG score recompute
  5. 2026-09-18 13:12 UTCVendor advisory
  6. 2026-09-17 12:04 UTCEG score recompute
  7. 2026-09-17 12:04 UTCVendor advisory
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 10:33 UTCEG score recompute
  10. 2026-09-16 10:33 UTCVendor advisory
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 07:21 UTCEG score recompute
  13. 2026-09-15 07:21 UTCVendor advisory
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 06:12 UTCEG score recompute
  16. 2026-09-14 06:12 UTCVendor advisory
  17. 2026-09-13 05:04 UTCEG score recompute
  18. 2026-09-13 05:04 UTCVendor advisory
  19. 2026-09-12 15:02 UTCEPSS rescore
  20. 2026-09-12 03:55 UTCEG score recompute
  21. 2026-09-12 03:55 UTCVendor advisory
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 02:46 UTCEG score recompute
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-10 01:37 UTCEG score recompute
Show 66 more
  1. 2026-09-08 22:01 UTCEPSS rescore
  2. 2026-09-08 20:57 UTCEG score recompute
  3. 2026-09-08 06:58 UTCEG score recompute
  4. 2026-09-08 06:58 UTCVendor advisory
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-07 05:44 UTCEG score recompute
  7. 2026-09-07 05:44 UTCVendor advisory
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-06 03:20 UTCEG score recompute
  10. 2026-09-06 03:20 UTCVendor advisory
  11. 2026-09-05 15:31 UTCEPSS rescore
  12. 2026-09-05 02:10 UTCEG score recompute
  13. 2026-09-05 02:10 UTCVendor advisory
  14. 2026-09-04 05:07 UTCEPSS rescore
  15. 2026-09-04 01:01 UTCVendor advisory
  16. 2026-09-02 23:11 UTCEG score recompute
  17. 2026-09-02 23:11 UTCVendor advisory
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-01 13:54 UTCEPSS rescore
  20. 2026-09-01 13:27 UTCEG score recompute
  21. 2026-09-01 13:27 UTCVendor advisory
  22. 2026-09-01 04:40 UTCEPSS rescore
  23. 2026-08-31 12:18 UTCEG score recompute
  24. 2026-08-31 12:18 UTCVendor advisory
  25. 2026-08-30 19:17 UTCEPSS rescore
  26. 2026-08-30 11:06 UTCEG score recompute
  27. 2026-08-30 11:06 UTCVendor advisory
  28. 2026-08-30 01:22 UTCEPSS rescore
  29. 2026-08-29 09:55 UTCEG score recompute
  30. 2026-08-29 09:55 UTCVendor advisory
  31. 2026-08-28 21:42 UTCEPSS rescore
  32. 2026-08-28 08:47 UTCEG score recompute
  33. 2026-08-28 08:47 UTCVendor advisory
  34. 2026-08-27 07:18 UTCEG score recompute
  35. 2026-08-27 07:18 UTCVendor advisory
  36. 2026-08-26 14:47 UTCEPSS rescore
  37. 2026-08-26 05:43 UTCEG score recompute
  38. 2026-08-26 05:43 UTCVendor advisory
  39. 2026-08-25 13:49 UTCEPSS rescore
  40. 2026-08-25 04:34 UTCEG score recompute
  41. 2026-08-25 04:34 UTCVendor advisory
  42. 2026-08-23 02:16 UTCEG score recompute
  43. 2026-08-23 00:19 UTCEPSS rescore
  44. 2026-08-22 01:08 UTCEG score recompute
  45. 2026-08-21 23:49 UTCEPSS rescore
  46. 2026-08-20 23:58 UTCEG score recompute
  47. 2026-08-20 22:56 UTCEPSS rescore
  48. 2026-08-19 22:50 UTCEG score recompute
  49. 2026-08-19 17:04 UTCEPSS rescore
  50. 2026-08-18 21:41 UTCEG score recompute
  51. 2026-08-18 13:49 UTCEPSS rescore
  52. 2026-08-18 13:49 UTCEPSS rescore
  53. 2026-08-17 20:33 UTCEG score recompute
  54. 2026-08-17 13:47 UTCEPSS rescore
  55. 2026-08-16 19:25 UTCEG score recompute
  56. 2026-08-16 14:56 UTCEPSS rescore
  57. 2026-08-16 14:56 UTCEPSS rescore
  58. 2026-08-16 02:15 UTCEPSS rescore
  59. 2026-08-15 18:16 UTCEG score recompute
  60. 2026-08-15 01:31 UTCEPSS rescore
  61. 2026-08-14 13:14 UTCEG score recompute
  62. 2026-08-13 16:26 UTCEG score recompute
  63. 2026-08-13 15:59 UTCEG score recompute
  64. 2026-08-13 15:23 UTCEG score recompute
  65. 2026-08-13 15:12 UTCEG score recompute
  66. 2026-08-13 15:11 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-70462?
CVE-2026-70462 is a medium vulnerability published on August 13, 2026. rsync 3.1.0 before 3.5.0 contains a signed integer overflow vulnerability in the I/O timeout implementation that allows attackers to permanently disable connection timeouts by injecting MSGIOTIMEOUT messages carrying non-positive (zero or negative) values. Attackers can craft malicious MSGIOTIMEOUT…
When was CVE-2026-70462 disclosed?
CVE-2026-70462 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70462 actively exploited?
CVE-2026-70462 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.1% of all scored CVEs.
What is the CVSS score of CVE-2026-70462?
CVE-2026-70462 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-70462?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70462, 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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