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CVE-2026-13117

An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2abd811d94334fe70f5294fca93598b49f7aab5a504547267cec9924bb8c1db0
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"OpenVPN","vendor":"OpenVPN","versions":[{"lessThanOrEqual":"2.6.20","status":"affected","version":"2.6.0","versionType":"semver"},{"lessThanOrEqual":"2.7.4","status":"affected","version":"2.7_alpha1","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-416","description":"CWE-416 Use after free","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["release-notes"],"url":"https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/references/2
{"tags":["release-notes"],"url":"https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/references/1
{"tags":["vendor-advisory"],"url":"https://community.openvpn.net/Security%20Announcements/CVE-2026-13117"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2603abe08d37a7dcc8d176ca33677cccd8e2ec8ddcc7b7c58a35ade049076767 · sha256:a3b3a564b8c34e71… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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