Security advisory
When compressing or decompressing a point on the NIST P-256 elliptic curve with an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output will cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-23002
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:01 UTC · Revision 1
Source evidence
When compressing or decompressing a point on the NIST P-256 elliptic curve with an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output will cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
osv:CVE-2022-23002
Complete source record
{
"id": "7eedb1b3f238efb99004834f7cbedf2e640d4e847c32d6872d246c22177ead52",
"url": "https://osv.dev/vulnerability/CVE-2022-23002",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-23002",
"summary": "When compressing or decompressing a point on the NIST P-256 elliptic curve with an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output will cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.",
"evidence": "osv:CVE-2022-23002",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2022-23002",
"aliases": [
"CVE-2022-23002"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/westerndigitalcorporation/sweet-b",
"type": "GIT",
"events": [
{
"introduced": "fc62093717722ba9817d331d830b95001542308a"
},
{
"last_affected": "fc62093717722ba9817d331d830b95001542308a"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:westerndigital:sweet_b:1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1"
},
{
"last_affected": "1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1",
"v1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-23002.json"
}
}
],
"modified": "2026-10-24T10:30:23.869845933Z",
"provider": "osv",
"references": [
"https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2022-23002",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 431024,
"published_at": "2022-07-29T19:15:08.21+00:00"
}