What is CVE-2023-26555?

CVE-2023-26555 is a medium-severity vulnerability in Ntp, classified under Out-of-bounds Write. CVSS score: 6.4/10. Published 2023-04-11.

How severe is CVE-2023-26555?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Buffer overflow in Ntp

CVE-2023-26555

praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (41.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ntp — versions 4.2.8
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org (Issue Tracking)
cve@mitre.org (vendor-advisory)
cve@mitre.org (vendor-advisory)

Frequently asked questions

What is CVE-2023-26555?: CVE-2023-26555 is a medium-severity vulnerability in Ntp, classified under Out-of-bounds Write. CVSS score: 6.4/10. Published 2023-04-11.
How severe is CVE-2023-26555?: Medium severity. CVSS v3 base score is 6.4 out of 10.