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CVE-2026-35058

Improper validation of packet length during tls-crypt-v2 key extraction in OpenVPN 2.6.0 through 2.6.19 and 2.7_alpha1 through 2.7.1 allows authenticated attackers to trigger a fatal assertion and cause a denial of service via a specially crafted packet.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dbacea89842f8aa2087f2cbc03bc8455e0f98e1f7c2097724e16679f66531080
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":"2.6.19","status":"affected","version":"2.6.0","versionType":"semver"},{"lessThanOrEqual":"2.7.1","status":"affected","version":"2.7_alpha1","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityI…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-617","description":"CWE-617 Reachable assertion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["release-notes"],"url":"https://community.openvpn.net/ReleaseHistory#openvpn-2620-released-22-april-2026"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/references/2
{"tags":["release-notes"],"url":"https://community.openvpn.net/ReleaseHistory#openvpn-272-released-22-april-2026"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/references/1
{"tags":["vendor-advisory"],"url":"https://community.openvpn.net/Security%20Announcements/CVE-2026-35058"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/cna/references/0
{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2381"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:73a35890b56922eec14eb45f51c3f67a340cd1f3db7b8b478004cec303705c8b · sha256:25098ec3e5981377… · /containers/adp/0/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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