Vulnerability · Published Jul 28, 2025 · Assigned by mitre
CVE-2023-53159
Medium 4.5
In plain English
A medium-severity security flaw in openssl from sfackler. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.5Medium
Exploit odds (30 days)0.2%top 86.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | rust-openssl | no fix listed | DEBIAN-CVE-2023-53159 |
| Debian:13 | rust-openssl | 0.10.57-1 | DEBIAN-CVE-2023-53159 |
| Debian:14 | rust-openssl | 0.10.57-1 | DEBIAN-CVE-2023-53159 |
Affected products (as reported)
Weakness: CWE-126 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L