CVE-2024-12084

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

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, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this weekWeaponized

Also known asEUVD-2024-50580 (ENISA EUVD) · GHSA-85h7-m8c3-v9wc (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
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 exploitation likelihood — EPSS 73%
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 73%CVSS: 9.8Exploit: Public PoCExposed 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 88/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation73% × 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, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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
73%
EPSS %ILE
99th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
73% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). 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)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

January 15, 2025

Last Modified

October 21, 2026

Advisory Details (8)

Auto-updated Oct 30, 2026
🔬 Proof of concept available. Patch available. Sources: redhat, cert, github.
GitHub advisoryMentions 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
Web page

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
Red HatMentions 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
Red HatMentions 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
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntursync (3.1.1-3ubuntu1.3+esm3) @ xenial2026-11-02ubuntu
ubuntursync (3.3.0-1ubuntu0.1) @ oracular2026-11-02ubuntu
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 28× in last 7d / 90× 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 98 of 216 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 118 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 14:38 UTCEG score recompute
  2. 2026-11-02 14:38 UTCVendor advisory
  3. 2026-11-02 14:38 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-01 14:54 UTCEG score recompute
  5. 2026-11-01 14:54 UTCVendor advisory
  6. 2026-11-01 14:54 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-31 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  8. 2026-10-31 15:12 UTCEG score recompute
  9. 2026-10-31 15:12 UTCVendor advisory
  10. 2026-10-31 15:11 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-30 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  12. 2026-10-30 15:28 UTCEG score recompute
  13. 2026-10-30 15:28 UTCVendor advisory
  14. 2026-10-30 15:28 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-29 15:45 UTCEG score recompute
  16. 2026-10-29 15:45 UTCVendor advisory
  17. 2026-10-29 15:45 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-28 16:29 UTCEPSS rescoreEPSS 73% · 99th percentile
  19. 2026-10-28 15:59 UTCEG score recompute
  20. 2026-10-28 15:59 UTCVendor advisory
  21. 2026-10-28 15:59 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-27 16:29 UTCEPSS rescoreEPSS 73% · 99th percentile
  23. 2026-10-27 16:15 UTCEG score recompute
  24. 2026-10-27 16:15 UTCVendor advisory
  25. 2026-10-27 16:15 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 73 more
  1. 2026-10-26 16:29 UTCEPSS rescoreEPSS 73% · 99th percentile
  2. 2026-10-26 16:22 UTCVendor advisory
  3. 2026-10-26 16:22 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-25 16:31 UTCEG score recompute
  5. 2026-10-25 16:31 UTCVendor advisory
  6. 2026-10-25 16:31 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-25 16:30 UTCEPSS rescoreEPSS 73% · 99th percentile
  8. 2026-10-24 16:46 UTCEG score recompute
  9. 2026-10-24 16:46 UTCVendor advisory
  10. 2026-10-24 16:46 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-23 17:02 UTCEG score recompute
  12. 2026-10-23 17:02 UTCVendor advisory
  13. 2026-10-23 17:02 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-23 16:29 UTCEPSS rescoreEPSS 73% · 99th percentile
  15. 2026-10-22 17:19 UTCEG score recompute
  16. 2026-10-22 17:19 UTCVendor advisory
  17. 2026-10-22 17:19 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-22 16:31 UTCEPSS rescoreEPSS 73% · 99th percentile
  19. 2026-10-21 17:26 UTCEG score recompute
  20. 2026-10-21 17:26 UTCVendor advisory
  21. 2026-10-21 17:26 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-21 16:29 UTCEPSS rescoreEPSS 72% · 99th percentile
  23. 2026-10-21 16:28 UTCEG score recompute
  24. 2026-10-21 16:28 UTCVendor advisory
  25. 2026-10-21 16:28 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-10-21 00:36 UTCEG score recompute
  27. 2026-10-21 00:36 UTCVendor advisory
  28. 2026-10-21 00:36 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-10-20 16:30 UTCEPSS rescoreEPSS 72% · 99th percentile
  30. 2026-10-20 00:51 UTCEG score recompute
  31. 2026-10-20 00:51 UTCVendor advisory
  32. 2026-10-20 00:50 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-10-19 16:29 UTCEPSS rescoreEPSS 72% · 99th percentile
  34. 2026-10-18 23:48 UTCEG score recompute
  35. 2026-10-18 23:48 UTCVendor advisory
  36. 2026-10-18 23:48 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-18 07:34 UTCEG score recompute
  38. 2026-10-18 00:03 UTCEG score recompute
  39. 2026-10-18 00:03 UTCVendor advisory
  40. 2026-10-18 00:02 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-17 16:30 UTCEPSS rescoreEPSS 72% · 99th percentile
  42. 2026-10-17 00:18 UTCEG score recompute
  43. 2026-10-17 00:18 UTCVendor advisory
  44. 2026-10-17 00:18 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-10-15 23:45 UTCEG score recompute
  46. 2026-10-15 23:45 UTCVendor advisory
  47. 2026-10-15 23:45 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-10-15 16:29 UTCEPSS rescoreEPSS 72% · 99th percentile
  49. 2026-10-14 16:30 UTCEPSS rescoreEPSS 72% · 99th percentile
  50. 2026-10-14 15:23 UTCEG score recompute
  51. 2026-10-14 15:23 UTCVendor advisory
  52. 2026-10-14 15:23 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-10-13 16:30 UTCEPSS rescoreEPSS 72% · 99th percentile
  54. 2026-10-13 14:48 UTCEG score recompute
  55. 2026-10-13 14:48 UTCVendor advisory
  56. 2026-10-13 14:48 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-10-12 15:05 UTCEG score recompute
  58. 2026-10-12 15:05 UTCVendor advisory
  59. 2026-10-12 15:05 UTCGHSA enrichmentGHSA-85h7-m8c3-v9wc · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-10-11 21:32 UTCEG score recompute
  61. 2026-10-11 13:45 UTCEPSS rescoreEPSS 72% · 99th percentile
  62. 2026-10-10 19:58 UTCEPSS rescoreEPSS 72% · 99th percentile
  63. 2026-10-08 17:07 UTCEPSS rescoreEPSS 72% · 99th percentile
  64. 2026-10-07 23:46 UTCEPSS rescoreEPSS 72% · 99th percentile
  65. 2026-10-06 15:15 UTCEPSS rescoreEPSS 72% · 99th percentile
  66. 2026-10-03 14:23 UTCEPSS rescoreEPSS 72% · 99th percentile
  67. 2026-10-03 01:25 UTCOSV refresh
  68. 2026-10-01 19:48 UTCEPSS rescoreEPSS 72% · 99th percentile
  69. 2026-09-30 16:43 UTCEG score recompute
  70. 2026-09-30 15:01 UTCEPSS rescoreEPSS 72% · 99th percentile
  71. 2026-09-27 13:43 UTCEPSS rescoreEPSS 72% · 99th percentile
  72. 2026-09-26 00:23 UTCEPSS rescoreEPSS 72% · 99th percentile
  73. 2026-09-24 14:01 UTCEPSS rescoreEPSS 72% · 99th percentile

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

Frequently asked(5)

What is CVE-2024-12084?
CVE-2024-12084 is a critical-severity vulnerability; its CVE record was 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 MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.
When was CVE-2024-12084 made public?
CVE-2024-12084 was made public on January 14, 2025: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on January 15, 2025. EchelonGraph's copy of the record carries a last-modified date of October 21, 2026; the record at its source may have been updated since.
Is CVE-2024-12084 actively exploited?
CVE-2024-12084 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model places it in Tier 2 (Weaponized), which is not evidence of exploitation: CISA's SSVC data says a public PoC exists and its EPSS is 50% or more. EchelonGraph does not test whether exploit code works. FIRST EPSS estimates a 73% 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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