CVE detail
CVE-2026-43618
Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the receiver process to read and return data from outside the intended buffer bounds. Attackers can exploit this vulnerability to disclose process memory contents including environment variables, passwords, heap and stack data, and library memory pointers, significantly reducing ASLR effectiveness and facilitating further exploitation.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 25.6 · diversity 19.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 1
- within the 30d window
- Peak daily
- 1
- highest bucket
Evidence
Source links by recency
12 source links · newest first
Information published.
vendormsrc.microsoft.comJul 23, 2026, 8:06 AMInformation published.
vendormsrc.microsoft.comMay 21, 2026, 8:01 AM- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43618.jsonsecurity.access.redhat.com
No excerpt available.
Vendor Advisorysecurity.access.redhat.comMay 20, 2026, 2:16 AM - https://bugzilla.redhat.com/show_bug.cgi?id=2469054bugzilla.redhat.com
No excerpt available.
Exploitbugzilla.redhat.comMay 20, 2026, 2:16 AM - https://access.redhat.com/security/cve/CVE-2026-43618access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 20, 2026, 2:16 AM - https://access.redhat.com/errata/RHSA-2026:29197access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 20, 2026, 2:16 AM - https://access.redhat.com/errata/RHSA-2026:26410access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 20, 2026, 2:16 AM - https://access.redhat.com/errata/RHSA-2026:26408access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 20, 2026, 2:16 AM - https://access.redhat.com/errata/RHSA-2026:26332access.redhat.com
No excerpt available.
Vendor Advisoryaccess.redhat.comMay 20, 2026, 2:16 AM No excerpt available.
Exploitwww.vulncheck.comMay 20, 2026, 2:16 AMNo excerpt available.
Exploitgithub.comMay 20, 2026, 2:16 AMNo excerpt available.
Exploitgithub.comMay 20, 2026, 2:16 AM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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