CVE-2026-70461: rsync 3.2.5 < 3.5.0 Heap Out-of-Bounds Write via files-from Entry
CSIRTS triage
- What
- Heap out-of-bounds write via malformed files-from entry causes memory corruption.
- Who is affected
- Deployments of rsync versions 3.2.5 through 3.4.x using files-from option are affected.
- Urgency
- High severity (CVSS 8.2) with no current public exploitation; patch should be prioritized.
- Action
- Upgrade rsync to version 3.5.0 or later.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70461
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-704610.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-70461 | coverage & exploitation status | NVD · CVE.org |
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