CVE-2015-2808
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 73.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 3.7 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 73.85% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-327
- Affected
- oracle/communications application session controller · oracle/communications policy management · oracle/http server · oracle/integrated lights out manager firmware · debian/debian linux · redhat/satellite · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation · suse/linux enterprise debuginfo · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · suse/manager · canonical/ubuntu linux · fujitsu/sparc enterprise m3000 firmware · +40 more
- Source
- cve@mitre.org
EPSS 73.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034Third Party Advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705Third Party Advisory
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10727Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00013.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00015.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00022.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00031.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00039.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00046.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00047.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00000.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00005.htmlMailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143456209711959&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143629696317098&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143741441012338&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143817021313142&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143817899717054&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=143818140118771&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144043644216842&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144059660127919&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144059703728085&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144060576831314&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144060606031437&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144069189622016&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144102017024820&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144104533800819&w=2Issue Tracking, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144104565600964&w=2Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.