CVE-2026-75615

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Source
https://cve.org/CVERecord?id=CVE-2026-75615
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75615.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75615
Aliases
  • GHSA-234q-m7gr-pcf8
Published
2026-11-05T16:49:20Z
Modified
2026-11-05T21:32:43Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
ASN1SCC: Out-of-bounds read via unvalidated character index in ASN.1 string decoders
Details

ASN1SCC is an open source ASN.1 compiler for embedded systems. Prior to 4.7.0.1, the ACN runtime function Acn_Dec_String_CharIndex_private in asn1crt/asn1crt_encoding_acn.c and the generated uPER decoder InternalItem_string_with_alpha_decode in StgC/uper_c.stg do not validate a decoded character index before reading allowedCharSet. For string alphabets whose size is not a power of two, a crafted message can select an unused encoded index, read a small bounded window of adjacent static program constants, and return the byte as a successfully decoded character. The full 128-character IA5String alphabet is not affected. This issue is fixed in version 4.7.0.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125",
        "CWE-129"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75615.json"
}
References

Affected packages

Git / github.com/esa/asn1scc

Affected ranges

Type
GIT
Repo
https://github.com/esa/asn1scc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8437befc92eb04f20a47c38f4ac4742c0ff1617c
Fixed
fe6ab763bc60d8a2def4104c15414809b45fffd9
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "4.7.0.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "fe6ab763bc60d8a2def4104c15414809b45fffd9"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "4.7.0.1",
            "range": [
                {
                    "fixed": "8437befc92eb04f20a47c38f4ac4742c0ff1617c"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

3.*
3.2.81
3.3.2
3.3.3
3.3.9
4.*
4.1.0.1f
4.1b
4.1c
4.1e
4.1f
4.2.0.1.f
4.2.1.3f
4.2.4.0f
4.2.4.3f
4.2.4.4f
4.2.4.5f
4.2.4.6f
4.2.5.0f
4.2.5.2f
4.3.0.0
4.3.0.1
4.3.1.1
4.3.1.3
4.4.0.0
4.4.0.1
4.4.0.2
4.5.0.0
4.5.0.10
4.5.0.11
4.5.0.12
4.5.0.2
4.5.0.4
4.5.1.2
4.5.1.4
4.5.1.5
4.5.2.0
4.5.2.1
4.5.2.2
4.5.2.3
4.5.2.4
4.5.2.9
4.6.0.1
4.6.0.12
4.6.0.14
4.6.0.17
4.6.0.2
4.6.0.5
4.6.0.8
4.6.0.9
v3.*
v3.2.55

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75615.json"