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CVE-2015-2808

LOW
Use of a Broken or Risky Cryptographic Algorithm (CWE-327)
2015-04-01 cve@mitre.org
3.7
CVSS 3.1 · NVD

Severity by source

NVD PRIMARY
3.7 LOW
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

7
Severity Changed
May 28, 2026 - 00:22 NVD
CRITICAL LOW
CVSS changed
May 28, 2026 - 00:22 NVD
10.0 (CRITICAL) 3.7 (LOW)
Severity Changed
May 28, 2026 - 00:22 NVD
CRITICAL LOW
CVSS changed
May 28, 2026 - 00:22 NVD
10.0 (CRITICAL) 3.7 (LOW)
Severity Changed
May 27, 2026 - 19:37 NVD
MEDIUM CRITICAL
CVSS changed
May 27, 2026 - 19:37 NVD
5.0 (MEDIUM) 10.0 (CRITICAL)
CVE Published
Apr 01, 2015 - 02:00 cve.org
LOW 3.7

DescriptionCVE.org

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue.

AnalysisAI

The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. Epss exploitation probability 33.9%.

Technical ContextAI

This vulnerability is classified under CWE-327. The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the "Bar Mitzvah" issue. Affected products include: Oracle Communications Application Session Controller, Oracle Communications Policy Management, Oracle Http Server, Oracle Integrated Lights Out Manager Firmware, Debian Debian Linux.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2015-2808 vulnerability details – vuln.today

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