VulnerabilityModified

CVE-2011-1473

MEDIUM 5.0EPSS 66.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 66.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment

CVSS 2.0: 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS: 66.87% probability · 99th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-264
Affected: openssl/openssl
Source: cve@mitre.org

EPSS trend

EPSS 66.9% 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

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.