Low severity · published Jul 28, 2025
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_host
3.3
CVSS
0.2%
EPSS
No
On KEV
Description
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openssl · Sfackler
before 0.10.55 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-53159
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-53159
Product
https://crates.io/crates/openssl
Exploit
https://github.com/sfackler/rust-openssl/issues/1965
Third Party Advisory
https://rustsec.org/advisories/RUSTSEC-2023-0044.html
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