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CVE-2026-42767

Issue summary: An attacker-controlled CMP (Certificate Management Protocol) server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server (or acting as a man-in-the-middle) could craft a CMP response containing a CRMF (Certificate Request Message Format) CertRepMessage with an EncryptedValue structure where the symmAlg field has an algorithm
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0b9a6e3f81782bb37b8b74efbb4bd5e434dfc953a3695ecc8abc781512dd75d6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"OpenSSL","vendor":"OpenSSL","versions":[{"lessThan":"4.0.1","status":"affected","version":"4.0.0","versionType":"semver"},{"lessThan":"3.6.3","status":"affected","version":"3.6.0","versionType":"semver"},{"lessThan":"3.5.7","status":"affected","version":"3.5.0","versionType":"semver"},{"lessThan":"3.4.6","status":"affected","version":"3.4.0","versionType":"semver"},{"lessThan":"3.0.21","status":"affected","version":"3.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"3.0.21 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/61a86a8cd73546c9fea916f3d304c1293e05c046"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/references/5
{"name":"3.4.6 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/665d5254083affde9982efca7c41dd01cacc8774"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/references/4
{"name":"3.5.7 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/810b722f772652ad48042bcc7ab07e3414b11d0f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/references/3
{"name":"4.0.1 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/b90ff3b1bd33b1c18e6a09936d097c2eddef8873"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/references/1
{"name":"3.6.3 git commit","tags":["patch"],"url":"https://github.com/openssl/openssl/commit/e6f912907fc2ec82a0fd07aae55172c5e5e3d90d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /containers/cna/references/2
{"name":"OpenSSL Advisory","tags":["vendor-advisory"],"url":"https://openssl-library.org/news/secadv/20260609.txt"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:46ae222b30010a873a6755372e3d15c08ced2d206fd872852301d5e058c5cd8a · sha256:7196c058165e6bc0… · /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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