kbrain

CVE-2009-1252

MEDIUM · CVSS 6.8EPSS 21.3%EU EUVD

Stack-based buffer overflow in the crypto_recv function in ntp_crypto.c in ntpd in NTP before 4.2.4p7 and 4.2.5 before 4.2.5p74, when OpenSSL and autokey are enabled, allows remote attackers to execute arbitrary code via a crafted packet containing an extension field.

Key facts

CVSS score
6.8 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE)
CWE-119
EPSS score
21.3% (98th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-1251)
Published
May 19, 2009
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1251 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp
  • ntp / ntp

and 28 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain