CVE-2024-12084Public exploitNetwork attack vector

Unauthenticated code execution via oversized checksum length

Published Jan 15, 2025 · Updated Jun 29, 2026

Heap-based buffer overflow in the rsync daemon 3.2.7 and 3.3.0 allows remote attackers to execute code via crafted checksums. The daemon accepts a peer-controlled s2length up to MAX_DIGEST_LEN, then read_buf writes that many bytes into the fixed 16-byte sum2 field. Anonymous read access to an rsync module is sufficient, and the overwrite can corrupt heap memory or support code execution.

CVSS severity9.8
Critical
EPSS probability72.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in the rsync daemon 3.2.7 and 3.3.0 allows remote attackers to execute code via crafted checksums. The daemon accepts a peer-controlled s2length up to MAX_DIGEST_LEN, then read_buf writes that many bytes into the fixed 16-byte sum2 field. Anonymous read access to an rsync module is sufficient, and the overwrite can corrupt heap memory or support code execution.

The record

CVE
CVE-2024-12084
Published
Jan 15, 2025
Updated
Jun 29, 2026
Vendor
389 Directory Server
Product
Red Hat Enterprise Linux 10
Classifications
CWE-122, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · Red Hat Enterprise Linux 10Affected versions are unavailable in this record.
Rsync Project · rsyncversion=3.2.7; version=3.3.0

Published CVSS scores

9.8Red Hat, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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