VulnSocial

CVE-2026-11787Disclosure(redhat / 389_directory_server)

LOWCVSS 6.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in 389 Directory Server. The ldap_utf8prev() function reads bytes before the start of a buffer without bounds checking, causing a heap buffer over-read in string filter parsing that may influence internal filter processing behavior.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-126

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • 389_directory_server
  • directory_server
  • enterprise_linux

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
redhat
Products
389_directory_serverdirectory_serverenterprise_linux

8 versions affected across 3 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-09: 1Technical Details · 2026-06-09: 106-09
Signal classification1 categories
Disclosure
1100.0%
Referenced assets2 URLs
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-11787 Heap Buffer Over-Read in 389 Directory Server LDAP UTF8 String Filter Pa... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-11787 Vulnerability Notification: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=3

    Post summary

    The tweet announces the new CVE‑2026‑11787, describing it as a heap buffer over‑read vulnerability in 389 Directory Server's LDAP UTF8 string filter, and provides a link to a vulnerability notification.

    0000037
    4.0K followersView on X
CPE platform detail8 entries

8 of 8 entries

PartVendorProductVersionTarget SWTarget HW
OSredhat389_directory_server---
Appredhatdirectory_server11.0--
Appredhatdirectory_server12.0--
Appredhatdirectory_server13.0--
OSredhatenterprise_linux10.0--
OSredhatenterprise_linux7.0--
OSredhatenterprise_linux8.0--
OSredhatenterprise_linux9.0--

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