CVE-2023-53159

openssl · Vulnerability

CVSS 3.1 4.5 MEDIUMEUVD CVSS 3.1 4.5 CVSS 3.1 · [email protected] · Secondary 4.5 MEDIUMCVSS 3.1 · [email protected] · Primary 3.3 LOWCVSS_V3 Publisher rating MODERATEFixed by openssl 0.10.55osv · severity unknownFixed by openssl 0.10.55KEV status unknown

Original advisory

cve-program · CVE-2023-53159

Published

The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.

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euvd · EUVD-2023-59771

Published

The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.

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nvd · CVE-2023-53159

Published

The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.

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osv · GHSA-xcf7-rvmh-g6q4

Published

When this function was passed an empty string, `openssl` would attempt to call `strlen` on it, reading arbitrary memory until it reached a NUL byte.

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osv · RUSTSEC-2023-0044

Published

When this function was passed an empty string, `openssl` would attempt to call `strlen` on it, reading arbitrary memory until it reached a NUL byte.

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Affected versions, risk and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

Which CVEs have scores here?

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No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

Risk history

Compare earlier KEV listings and daily EPSS scores. Advisory wording and affected versions have a separate history.

When does an EPSS score appear as a change?

A prediction change is reported when EPSS rises from below 10% to 10% or higher. Other daily score changes remain in this history.

Advisory history

13 saved versions

See how the publisher's advisory changed over time. Each link opens the version saved at that time. The publisher's update date can differ from the date shown here.

How advisory history works

Each link identifies one complete publisher record. History can include advisories that previously shared an identifier; an identifier removed by a publisher no longer establishes a current relationship. A historical link shows only that record and earlier saved versions. Failed checks and unchanged reads do not create new versions.

13 Nov 2026 07:10:12 UTC