CVE-2023-26553

MEDIUM EPSS 48.6%
Published Apr 11, 20233y ago · Modified Jun 17, 20262w ago
5.6 CVSS 3.1
Medium
Find Similar
Published Apr 11, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when copying the trailing number. An adversary may be able to attack a client ntpq process, but cannot attack ntpd.

CVSS Details

Base Score
5.6
Exploitability
2.2
Impact
3.4
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
48.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
ntpntp4.2.8any

References 2

  • github.com https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26553
    Third Party Advisory
  • github.com https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506667321
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.