CVE•Published 2013-03-15•Modified 2026-04-29•1 article on news•6 live references•NVD data

CVE-2013-2566Oracle · Communications_application_session_controller

Vulnerability data via NVD (ingested)

CVSS v3.1

5.9

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS percentile

100

Exploit Prediction Scoring System · top 0% of all CVEs

Weaknesses (CWE)

CWE-326Inadequate Encryption Strength

Description

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext.

Timeline

Published 2013-03-15

Modified 2026-04-29

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2013-2566

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Oracle Communications Application Session Controller"

All exposed Oracle Communications Application Session Controller instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Communications Application Session Controller"

HTTP body or banner mentions "Communications Application Session Controller" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2013-2566