Search/CVE-2026-78135
● CVE — Medium

CVE-2026-78135

libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.

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CVSS v3.1
5.6 MEDIUM
EPSS
0.36%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Intelligence Reports1
1 intelligence report available

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EPSS Trend
Sep 12, 2026 → Sep 19, 2026
▲ 0.03pp
0.34% → 0.36% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityHIGH
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityLOW
IntegrityLOW
AvailabilityLOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Connections
2 relationships
Timeline
disclosure → media coverage
Sep 11, 2026
Disclosure — published as a CVE record. · last revised by NVD Sep 16, 2026