Security readout for executives and security teams
This is an old Microsoft ASN.1 parsing flaw that could let a remote attacker run code by sending specially formed ASN.1 data. The public record does not list affected product versions or a vendor-confirmed fix in this bundle, so exposure assessment depends on legacy Microsoft inventory and patch records. Exposure is uncertain because the bundle lists affected vendor, product, and versions as n/a. Prioritize legacy Microsoft systems or services that use MSASN1.DLL and process ASN.1/SPNEGO authentication data, especially internet-facing HTTP authentication paths. Treat as high priority only where legacy Microsoft systems remain in scope. The business risk is remote code execution, but current urgency is bounded by age, uncertain affected versions, and no KEV evidence of active exploitation. Mitigation focus: Check Microsoft guidance and patch history for MSASN1.DLL and MS04-007 applicability.; Identify and retire unsupported Microsoft systems that may contain vulnerable MSASN1.DLL versions.; Restrict exposure of services processing SPNEGO or ASN.1 authentication data..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2005-1935 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- asn1-constructed-heap-overflow(20870)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.