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CVE-2026-28221 Wazuh: Pre-auth stack-based buffer overflow in wazuh-remoted print_hex_string() due to signed char promotion on x86_64

🗓️ 29 Apr 2026 17:53:15Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 48 Views

Pre-auth overflow in wazuh remoted on x86 64 bit from signed char promotion; fixed in 4.14.4.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-28221
29 Apr 202617:53
–attackerkb
bdu_fstec
BDU FSTEC
The vulnerability of the print_hex_string() function in the Wazuh intrusion detection and prevention system allows a perpetrator to execute arbitrary code.
13 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-28221
30 Apr 202604:07
–circl
cnnvd
CNNVD
Wazuh 安全漏洞
29 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-28221
29 Apr 202617:53
–cve
euvd
EUVD
EUVD-2026-26270
29 Apr 202617:53
–euvd
nvd
NVD
CVE-2026-28221
29 Apr 202619:16
–nvd
ptsecurity
Positive Technologies
PT-2026-35966
29 Apr 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-28221: Stack-based Buffer Overflow
29 Apr 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-28221
5 Jun 202619:29
–redhatcve
Rows per page
[
  {
    "vendor": "wazuh",
    "product": "wazuh",
    "versions": [
      {
        "version": ">= 4.8.0, < 4.14.4",
        "status": "affected"
      }
    ]
  }
]

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