High
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
Type: advisorySources: OSV
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-15281
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 13:25 UTC · Revision 1
Source evidence
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
core-osv · Original sourcePublished 20 Jan 2026, 13:22 UTC
Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.
osv:CVE-2025-15281
Complete source record
{
"id": "db5b991b71606bdb5c4fd15a9b2e88c8c1f9c3267dfd9276b252afc455f51dfb",
"url": "https://osv.dev/vulnerability/CVE-2025-15281",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory",
"summary": "Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.",
"evidence": "osv:CVE-2025-15281",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2025-15281",
"aliases": [
"CVE-2025-15281"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://sourceware.org/git/glibc.git",
"type": "GIT",
"events": [
{
"introduced": "7434ccadbb6897d366d2377f84efe1e2cd61b02b"
},
{
"fixed": "f762ccf84f122d1354f103a151cba8bde797d521"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0"
},
{
"fixed": "2.43"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15281.json"
}
}
],
"modified": "2026-10-28T02:30:35.742072050Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15281.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-15281",
"https://sourceware.org/bugzilla/show_bug.cgi?id=33814"
],
"provider_metadata": {
"cwe_ids": [
"CWE-908"
],
"cna_assigner": "glibc",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "2.0"
},
{
"last_affected": "2.42"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15281.json"
}
},
"related_cves": [
{
"value": "CVE-2025-15281",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 503078,
"published_at": "2026-01-20T13:22:46.495+00:00"
}