CVE-2024-12084

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2025-01-15. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Weaponized
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 72%
  • Public exploit code is available (ssvc poc, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 72%CVSS: 9.8Exploit: ssvc poc · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
88
EG Risk 88/100CISA SSVC

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
Severity98% × 45%
Exploitation72% × 40%
Automatability100% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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
72%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

January 15, 2025

Last Modified

June 29, 2026

Advisory Details (8)

Auto-updated Oct 4, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, cert, github.
githubMentions a patch (unverified)🟡 PoC Available

RSync: Heap Buffer Overflow, Info Leak, Server Leaks, Path Traversal and Safe links Bypass · Advisory · google/security-research · GitHub

https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj
cert

VU#952657 - Rsync contains six vulnerabilities

https://www.kb.cert.org/vuls/id/952657
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20250131-0002/
generic

oss-security - Re: RSYNC: 6 vulnerabilities

http://www.openwall.com/lists/oss-security/2025/01/14/6
cert

VU#952657 - Rsync contains six vulnerabilities

https://kb.cert.org/vuls/id/952657
redhatMentions a patch (unverified)

2330527 – (CVE-2024-12084) CVE-2024-12084 rsync: Heap Buffer Overflow in Rsync due to Improper Checksum Length Handling

https://bugzilla.redhat.com/show_bug.cgi?id=2330527
redhatMentions a patch (unverified)

CVE-2024-12084 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2024-12084
redhatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHBA-2025:6470

Vendor Advisories for CVE-2024-12084(3)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntursync (3.1.0-2ubuntu0.4+esm1) @ trusty2026-05-30ubuntu
ubuntursync (3.3.0-1ubuntu0.1) @ oracular2026-05-30ubuntu
redhatrsync-0:3.4.1-2.el102025-05-13redhat

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

(10 across 10 ecosystems)
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.4.0-r0: fixed in 3.4.0-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
rsync3.2.7-1
  • every version up to 3.2.7-1+deb12u1: fixed in 3.2.7-1+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.3.0+ds1-3: fixed in 3.3.0+ds1-3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
rsync—
  • every version up to 3.3.0+ds1-3: fixed in 3.3.0+ds1-3
—

Weakness Classification(2)

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

Additional Vendor Advisories

(2)

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 4× in last 7d / 24× 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.

Showing the most recent 100 of 131 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2024-12084?
CVE-2024-12084 is a critical vulnerability published on January 15, 2025. A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAXDIGESTLEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.
When was CVE-2024-12084 disclosed?
CVE-2024-12084 was first published on January 15, 2025, with the most recent update on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-12084 actively exploited?
CVE-2024-12084 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 72% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-12084?
CVE-2024-12084 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2024-12084?
A fix for CVE-2024-12084 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-12084 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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