[UPDATE] [high] strongSwan: Vulnerability enables code execution

highCVE-2026-47895

A remote, anonymous attacker can exploit a vulnerability in strongSwan to execute arbitrary program code.

CSIRTS triage

vendor: strongSwan product: strongSwan Remote code execution

What: A remote anonymous attacker can execute arbitrary program code in strongSwan.
Who is affected: All deployments of strongSwan are affected.
Urgency: High urgency; remote code execution is exploitable and requires immediate patching.
Action: Update strongSwan to the patched version immediately.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-08-24
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1832

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 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.

highCVE-2026-47895: In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that…nvd · 2026-08-22
highCVE-2026-47895: In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that…msrc · 2026-08-11