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.
Conclusion & alert: CVE-2015-0204 is rated Moderate Risk (52/100): CVSS Medium severity, with high exploitation likelihood (EPSS 91.94%, 100th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-14 | 91.99% | 91.94% | -0.05% |
| 2 | 2026-05-06 | 92.47% | 91.99% | -0.48% |
| 3 | 2026-05-01 | — | 92.47% | — |
Full EPSS history (64 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-0204 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2015-0204 |
gentoo
|
normal | CVE-2015-0204: 1 GLSA(s) (201503-11), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0204 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-0204 |
suse
|
critical | — | https://www.suse.com/security/cve/CVE-2015-0204/ |
ubuntu
|
low | CVE-2015-0204 low priority: Ubuntu including 2 source packages (openssl, openssl098), 28 status rows across 14 suites (artful, bionic, cosmic, disco, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): released 15, DNE 10, ignored 3. | https://ubuntu.com/security/CVE-2015-0204 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| openssl | openssl | <= 0.9.8zc | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0a | cpe:2.3:a:openssl:openssl:1.0.0a:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0b | cpe:2.3:a:openssl:openssl:1.0.0b:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0c | cpe:2.3:a:openssl:openssl:1.0.0c:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0d | cpe:2.3:a:openssl:openssl:1.0.0d:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0e | cpe:2.3:a:openssl:openssl:1.0.0e:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0f | cpe:2.3:a:openssl:openssl:1.0.0f:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0g | cpe:2.3:a:openssl:openssl:1.0.0g:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0h | cpe:2.3:a:openssl:openssl:1.0.0h:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0i | cpe:2.3:a:openssl:openssl:1.0.0i:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0j | cpe:2.3:a:openssl:openssl:1.0.0j:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0k | cpe:2.3:a:openssl:openssl:1.0.0k:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0l | cpe:2.3:a:openssl:openssl:1.0.0l:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0m | cpe:2.3:a:openssl:openssl:1.0.0m:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0n | cpe:2.3:a:openssl:openssl:1.0.0n:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.0o | cpe:2.3:a:openssl:openssl:1.0.0o:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1a | cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1b | cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1c | cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1d | cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1e | cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1f | cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1g | cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1h | cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1i | cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1j | cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:* |