CVE-2023-25139EPSS p69.4%
CVE-2023-25139CVE-2023-25139
gnu / glibc
Description
sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.
Scoring
| CVSS | 9.8 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 1.42% probability of exploitation · percentile 69.4% · 2026-06-18T12:00:27Z |
| Last modified | 2026-06-17 |