Home/CVE/The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_ho
CVE

CVE-2023-53159

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

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

MEDIUM · CVSS 4.5 EPSS 0.00236
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-126Buffer Over-read
▤

Affected Products & Versions

1
sfackler openssl< 0.10.55
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
crates.io openssl MODERATE fixed in 0.10.55
⚠

Public Exploits & PoCs

1
pocgithub.com · 1965github.com
▣

Scoring & Timeline

4.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Jul 2025 · 03:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
usnUSN-7891-1
msrcCVE-2023-53159
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://crates.io/crates/opensslProduct
https://rustsec.org/advisories/RUSTSEC-2023-0044.htmlThird Party Advisory
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