Cyber Resilience

CVE-2016-0800

Medium

Published: 01 March 2016

Published
01 March 2016
Modified
06 May 2026
KEV Added
Patch
CVSS Score v3 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.8211 99.6th percentile
Risk Priority 80 floored blend · peak EPSS

Summary

CVE-2016-0800 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Openssl Openssl. Its CVSS base score is 5.9 (Medium).

Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability details

The SSLv2 protocol, as used in OpenSSL before 1.0.1s and 1.0.2 before 1.0.2g and other products, requires a server to send a ServerVerify message before establishing that a client possesses certain plaintext RSA data, which makes it easier for remote…

more

attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, aka a "DROWN" attack.

CWE(s)

Related Threats

CVEs Like This One

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CVE-2025-55145Same product class: VPN / SSL gateway
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CVE-2023-4966Same product class: VPN / SSL gateway
CVE-2024-40591Same product class: VPN / SSL gateway
CVE-2024-46668Same product class: VPN / SSL gateway
CVE-2025-0111Same product class: VPN / SSL gateway
CVE-2025-0118Same product class: VPN / SSL gateway
CVE-2025-59718Same product class: VPN / SSL gateway

Affected Assets

openssl
openssl
1.0.1, 1.0.1a, 1.0.1b, 1.0.1c, 1.0.1d
pulsesecure
client
all versions
pulsesecure
steel belted radius
all versions

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-200

Automated marking applies security attributes to system outputs, making it harder for attackers to exploit unmarked sensitive information leading to unauthorized exposure.

addresses: CWE-200

Proper attribute retention and permitted-value enforcement limits unauthorized actors from accessing sensitive information lacking correct labels.

addresses: CWE-200

Prevents unauthorized exposure of sensitive information by prohibiting untrusted external systems from processing or storing it.

addresses: CWE-200

By enforcing authorization matching prior to sharing, the control reduces the risk of exposing sensitive information to unauthorized actors.

addresses: CWE-200

Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.

addresses: CWE-200

Data mining protection mechanisms detect and block unauthorized bulk extraction of sensitive data, directly mitigating exposure to unauthorized actors.

addresses: CWE-200

Literacy training teaches users to recognize and avoid actions that result in unauthorized exposure of sensitive information.

addresses: CWE-200

Retaining and monitoring training records confirms personnel have completed privacy and security awareness training on handling sensitive data, reducing the chance of unauthorized exposure due to lack of knowledge.

References