The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initializatio
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.
- DLA-303-1
- DSA-3316-1
- DSA-3339-1
- openSUSE-SU-2024:10197-1
- RHSA-2015:1006
- RHSA-2015:1007
- RHSA-2015:1020
- RHSA-2015:1021
- RHSA-2015:1091
- RHSA-2015:1228
- RHSA-2015:1229
- RHSA-2015:1230
- RHSA-2015:1241
- RHSA-2015:1242
- RHSA-2015:1243
- RHSA-2015:1526
- SUSE-SU-2015:1073-1
- SUSE-SU-2015:1161-1
- SUSE-SU-2015:1319-1
- SUSE-SU-2015:1320-1
- Published
- Mar 31, 2015
- Updated
- Jun 16, 2026
- EPSS
- 73.9% · 99th percentile
- CWE
- CWE-327
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Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 14 / 40 · 3.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 22 / 30 · 73.9%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| oracle | communications application session controller | cpe:2.3:a:oracle:communications_application_session_controller |
| oracle | communications policy management | cpe:2.3:a:oracle:communications_policy_management |
| oracle | http server | cpe:2.3:a:oracle:http_server |
| oracle | integrated lights out manager firmware | cpe:2.3:o:oracle:integrated_lights_out_manager_firmware |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | satellite | cpe:2.3:a:redhat:satellite |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
and 87 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux12.04
- canonical ubuntu linux14.04
- canonical ubuntu linux15.04
- debian debian linux7.0
- debian debian linux8.0
- fujitsu sparc enterprise m3000 firmwarexcp and later · before xcp_1121
- fujitsu sparc enterprise m4000 firmwarexcp and later · before xcp_1121
- fujitsu sparc enterprise m5000 firmwarexcp and later · before xcp_1121
- fujitsu sparc enterprise m8000 firmwarexcp and later · before xcp_1121
- fujitsu sparc enterprise m9000 firmwarexcp and later · before xcp_1121
- huawei 9700 firmwareall versions
- huawei e6000 firmwareall versions
- huawei e9000 firmwareall versions
- huawei oceanstor 18500 firmwareall versions
- huawei oceanstor 18800 firmwareall versions
- huawei oceanstor 18800f firmwareall versions
- huawei oceanstor 9000 firmwareall versions
- huawei oceanstor cse firmwareall versions
- huawei oceanstor hvs85t firmwareall versions
- huawei oceanstor replicationdirectorv100r003c00
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:6.0 | openjdk-6 | before 6b36-1.13.8-1~deb6u1 | 6b36-1.13.8-1~deb6u1 |
| Debian:7 | openjdk-6 | before 6b36-1.13.8-1~deb7u1 | 6b36-1.13.8-1~deb7u1 |
| Debian:7 | openjdk-7 | before 7u79-2.5.6-1~deb7u1 | 7u79-2.5.6-1~deb7u1 |
| Debian:8 | openjdk-7 | before 7u79-2.5.6-1~deb8u1 | 7u79-2.5.6-1~deb8u1 |
| openSUSE:Tumbleweed | java-1_8_0-openjdk | before 1.8.0.111-1.1 | 1.8.0.111-1.1 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-debuginfo | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-demo | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-devel | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-javadoc | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-src | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk-debuginfo | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk-demo | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk-devel | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk-javadoc | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.7.0-openjdk-src | before 1:1.7.0.85-2.6.1.3.el5_11 | 1:1.7.0.85-2.6.1.3.el5_11 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk-debuginfo | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk-demo | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk-devel | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk-javadoc | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.6.0-openjdk-src | before 1:1.6.0.36-1.13.8.1.el6_7 | 1:1.6.0.36-1.13.8.1.el6_7 |
| Red Hat:enterprise_linux:6::client | java-1.7.0-openjdk | before 1:1.7.0.85-2.6.1.3.el6_6 | 1:1.7.0.85-2.6.1.3.el6_6 |
+96
Same product
oracle: all recordsOther highest-scoring records for the same primary product.
- CVE-2013-2566The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to 48Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:openjdk-6 | 6b36-1.13.8-1~deb6u1 · Debian:6.0 | Package registry (OSV) |
| debian:openjdk-7 | 7u79-2.5.6-1~deb7u1 · Debian:7 | Package registry (OSV) |
| opensuse:java-1_8_0-openjdk | 1.8.0.111-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:java-1.6.0-ibm | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-accessibility | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-demo | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-devel | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-javacomm | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-jdbc | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-plugin | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.6.0-ibm-src | 1:1.6.0.16.4-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.7.0-ibm | 1:1.7.0.9.0-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.7.0-ibm-demo | 1:1.7.0.9.0-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.7.0-ibm-devel | 1:1.7.0.9.0-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| red hat:java-1.7.0-ibm-jdbc | 1:1.7.0.9.0-1jpp.1.el5 · Red Hat:rhel_extras:5::client | Package registry (OSV) |
| suse:java-1_6_0-ibm | 1.6.0_sr16.4-15.1 · SUSE:Linux Enterprise Module for Legacy 12 | Package registry (OSV) |
| suse:java-1_7_0-ibm | 1.7.0_sr9.10-9.1 · SUSE:Linux Enterprise Software Development Kit 11 SP3 | Package registry (OSV) |
| suse:java-1_7_0-openjdk | 1.7.0.85-18.2 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:java-1_7_1-ibm | 1.7.1_sr3.0-11.1 · SUSE:Linux Enterprise Software Development Kit 12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- low · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-327 · Use of a Broken or Risky Cryptographic AlgorithmCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Encryption Brute ForcingCAPEC-20likelihood: Low · Low
- Creating a Rogue Certification Authority CertificateCAPEC-459likelihood: Medium · Very High
- Signature SpoofCAPEC-473
- Signature Spoofing by Improper ValidationCAPEC-475likelihood: Low · High
- Cryptanalysis of Cellular EncryptionCAPEC-608High
- Rooting SIM CardsCAPEC-614High
- CryptanalysisCAPEC-97likelihood: Low · Very High
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10727
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00013.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00015.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00022.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00031.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00039.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00040.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00046.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00047.html
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00000.html
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.html
- lists.opensuse.org/opensuse-security-announce/2016-01/msg00005.html
- marc.info/?l=bugtraq&m=143456209711959&w=2
- marc.info/?l=bugtraq&m=143629696317098&w=2
- marc.info/?l=bugtraq&m=143741441012338&w=2
- marc.info/?l=bugtraq&m=143817021313142&w=2
- marc.info/?l=bugtraq&m=143817899717054&w=2
Vendor advisories and official records. Exploit/PoC links are deliberately left out.