Dashboard / CVE-2026-11793

CVE-2026-11793

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 55/100
Published: 2026-06-09 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Unchanged
C: None
I: None
A: High

Description

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
redhat 389_directory_server -

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2484914
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.28%
Raw Score 0.002820
Percentile 21.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00282
2026-11-12
0.00282
2026-11-10
0.00282
2026-11-09
0.00282
2026-11-08
0.00282
2026-11-07
0.00282
2026-11-06
0.00282

Intelligence Sources

mitre ref →
nvd ref →

External Links