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CVE-2026-45615

mouse07410/asn1c is an ASN.1 compiler. In 1.4 and earlier, a memory safety vulnerability was identified in the OER decoding skeleton files generated by asn1c (specifically INTEGER_oer.c). When parsing a maliciously crafted, zero-length OER payload for a variable-length, non-negative INTEGER type, the decoder fails to validate the required bytes before extracting the Most Significant Bit (MSB). This forces a precise 1-byte Heap Out-of-Bounds (OOB) Read. Because asn1c generated code is primarily d
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fb238264f215e4f5b748222453a9b43bb68e918fd753b0d53b892e9d5ddaa28a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-130","description":"CWE-130: Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"asn1c","vendor":"mouse07410","versions":[{"status":"affected","version":"<= 1.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-130","description":"CWE-130: Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/mouse07410/asn1c/security/advisories/GHSA-wxx8-76rw-96j2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /containers/adp/0/references/0
{"name":"https://github.com/mouse07410/asn1c/security/advisories/GHSA-wxx8-76rw-96j2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mouse07410/asn1c/security/advisories/GHSA-wxx8-76rw-96j2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:82bfb3a2b1123f92d018d44d4cb34a01d0d6267e3da4ca390430218463720a1d · sha256:777e36197aa04066… · /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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