CVE-2026-11793
Medium · 4.9CVSS
4.9
EPSS
0.3%
Published
Jun 9, 2026
CISA due date
—
The record
A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-107705 Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in… CWE-121
- CVE-2026-95818 A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc)… CWE-121
- CVE-2026-61548 Rsyslog is a rocket-fast system for log processing. CWE-121
- CVE-2026-19774 BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. CWE-121
- CVE-2026-19542 Calling tdelete on a sufficiently deep tree in the GNU C Library version 2.1 to 2.44 may… CWE-121
- CVE-2026-15419 In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged… CWE-121
- CVE-2026-88047 Tesseract is an open source OCR engine. CWE-121
- CVE-2026-88289 GeoVision GV-LPC2211 V1.14 (260903) fails to validate attacker-controlled variable-length… CWE-121