How severe is CVE-2004-2645?

CVE-2004-2645 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2004-2645 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-2645?

CVE-2004-2645 primarily affects Asn.1 Compiler. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-2645?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2004-2645 published?

CVE-2004-2645 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-2645

CVE-2004-2645 is a critical-severity vulnerability in Asn.1 Compiler with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Asn.1 Compiler
Published: 2004-12-31
Last modified: 2026-06-16

Description

Unspecified vulnerability in ASN.1 Compiler (asn1c) before 0.9.7 has unknown impact and attack vectors when processing "CHOICE" types with "indefinite length structures."

Frequently asked questions

What is CVE-2004-2645?: Unspecified vulnerability in ASN.1 Compiler (asn1c) before 0.9.7 has unknown impact and attack vectors when processing "CHOICE" types with "indefinite length structures."
How severe is CVE-2004-2645?: CVE-2004-2645 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-2645 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-2645?: CVE-2004-2645 primarily affects Asn.1 Compiler. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-2645?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-2645 published?: CVE-2004-2645 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:asn.1_compiler:asn.1_compiler:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:asn.1_compiler:asn.1_compiler:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:asn.1_compiler:asn.1_compiler:0.9.6:*:*:*:*:*:*:*

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CVE-2004-2644 — Critical (CVSS 10.0): Unspecified vulnerability in ASN.1 Compiler (asn1c) before 0.9.7 has unknown impact and attack vectors when processing…

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