CVE-2025-12888

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Source
https://cve.org/CVERecord?id=CVE-2025-12888
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12888.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-12888
Downstream
Published
2025-11-21T22:50:30.510Z
Modified
2026-08-12T03:51:37.964351859Z
Severity
  • 1.0 (Low) CVSS_V4 - CVSS:4.0/AV:P/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
Constant Time Issue with Xtensa-based ESP32 and X22519
Details

Vulnerability in X25519 constant-time cryptographic implementations due to timing side channels introduced by compiler optimizations and CPU architecture limitations, specifically with the Xtensa-based ESP32 chips. If targeting Xtensa it is recommended to use the low memory implementations of X25519, which is now turned on as the default for Xtensa.

Database specific 
{
    "cwe_ids": [
        "CWE-203"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/12xxx/CVE-2025-12888.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "5.8.4"
                }
            ]
        }
    ],
    "cna_assigner": "wolfSSL"
}
References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type
GIT
Repo
https://github.com/wolfssl/wolfssl
Events
Introduced
decea12e223869c8f8f3ab5a53dc90b69f436eb2
Last affected
decea12e223869c8f8f3ab5a53dc90b69f436eb2
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:wolfssl:wolfssl:5.8.2:*:*:*:*:*:*:*",
    "source": "CPE_STRING",
    "extracted_events": [
        {
            "introduced": "5.8.2"
        },
        {
            "last_affected": "5.8.2"
        }
    ]
}

Affected versions

5.*
5.8.2
v5.*
v5.8.2-stable

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12888.json"