CVE-2026-47895: In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.

highCVSS 7.5CVE-2026-47895

CSIRTS triage

vendor: strongSwan product: strongSwan Memory corruptionaffected: before 6.0.7

What: Identity parsing and cloning is mishandled; empty but non-NULL EAP-Identity encodings trigger a double-free.
Who is affected: strongSwan IKE deployments using EAP authentication with malformed identity payloads.
Urgency: High severity with double-free crash and potential RCE; update immediately.
Action: Upgrade strongSwan to version 6.0.7 or later that correctly clones EAP-Identity encodings.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.5
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47895

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-2026-478950.67% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-47895	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for In strongSwan

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

high[UPDATE] [high] strongSwan: Vulnerability enables code executioncert-bund · 2026-08-24
highCVE-2026-47895: In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that…nvd · 2026-08-22