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Vulnerabilities/CVE-2015-0204Public Intelligence Dossier
Source: openssl · Limited verification•Last verified: •Collection Running
CVE-2015-0204Unknown / EvaluatingMEDIUM (raw)CVSS 4.3CWE-310

The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k allows remote SSL servers to conduct RSA-to-EXPORT_RSA downgrade attacks and facilitate brute-force decryption by offering a weak ephemeral RSA key in a noncompliant role, related to the "FREAK" issue

Published: 09 Jan 2015•Last updated: 15 Oct 2026, 03:47 AM IST•Source identifier: secalert@redhat.com
Dossier completeness: source-provided sections 2 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Unknown
KEV status was not determined.
CVSS score
4.3MEDIUM (raw)
AV:N/AC:M/Au:N/C:N/I:P/A:N
Metric sourcenvd@nist.gov
EPSS probability
98.7%0.987
Percentile100th
Weakness type
CWE-310
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k allows remote SSL servers to conduct RSA-to-EXPORT_RSA downgrade attacks and facilitate brute-force decryption by offering a weak ephemeral RSA key in a noncompliant role, related to the "FREAK" issue. NOTE: the scope of this CVE is only client code based on OpenSSL, not EXPORT_RSA issues associated with servers or other TLS implementations.

SOC priority

Medium

Actively exploited

Unknown

Publicly disclosed

Unknown

Risk basis: Microsoft or Microsoft-managed product relevance; No confirmed exploitation signal in current enrichment

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • openssl openssl · <= 0.9.8zc; 1.0.0a; 1.0.0b; 1.0.0c; 1.0.0d; 1.0.0e; 1.0.0f; 1.0.0g; 1.0.0h; 1.0.0i; 1.0.0j; 1.0.0k; 1.0.0l; 1.0.0m; 1.0.0n; 1.0.0o; 1.0.1a; 1.0.1b; 1.0.1c; 1.0.1d; 1.0.1e; 1.0.1f; 1.0.1g; 1.0.1h; 1.0.1i; 1.0.1j · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

Not provided by source

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Unknown
Exploited (source statement)
Unknown
Publicly disclosed (source)
Unknown

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

No rule-based guidance for this vulnerability class

CISA KEV Record

CISA KEV status was not determined for this record.

Change History & Source Data

— No recorded material change

CNA / source
secalert@redhat.com
Record status · verification
UPDATED · NVD API
CPE
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0a:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0b:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0c:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0d:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0e:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0f:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0g:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0h:*:*:*:*:*:*:*, cpe:2.3:a:openssl:openssl:1.0.0i:*:*:*:*:*:*:*

Evidence & Provenance

2 public sources
freakattack.comSource recordnvd.nist.govSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2015-0204
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2015-0204
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2015-0204"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Correlated briefings

— No published briefing references this CVE

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.