CVE-2026-11793

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH confidence

Score 4.9 from GitHub Security Advisory published 2026-06-09. a secondary CVSS source baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
4.9
EG Score
4.9(high)
EPSS
20.0%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 30, 2026

Advisory Details (3)

Auto-updated Jun 16, 2026
Patch available. Sources: redhat.
generic

Jira

https://redhat.atlassian.net/browse/PSIRTSUPT-7600
redhat

2484914 – (CVE-2026-11793) CVE-2026-11793 389-ds-base: 389-ds-base: stack buffer overflow in checkPrefix() algorithm ID parsing

https://bugzilla.redhat.com/show_bug.cgi?id=2484914
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-11793

Vendor Advisories for CVE-2026-11793(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 82× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 15:46 UTCEG score recompute
  4. 2026-07-05 15:46 UTCGHSA enrichment
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-04 14:18 UTCEG score recompute
  8. 2026-07-04 14:18 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 09:00 UTCEG score recompute
  11. 2026-07-03 08:59 UTCGHSA enrichment
  12. 2026-07-02 03:16 UTCEG score recompute
  13. 2026-07-02 03:16 UTCGHSA enrichment
  14. 2026-07-01 15:06 UTCEPSS rescore
  15. 2026-07-01 15:06 UTCEPSS rescore
  16. 2026-07-01 01:48 UTCEG score recompute
  17. 2026-07-01 01:48 UTCGHSA enrichment
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-30 00:20 UTCEG score recompute
  20. 2026-06-30 00:20 UTCGHSA enrichment
  21. 2026-06-28 22:52 UTCEG score recompute
  22. 2026-06-28 22:52 UTCGHSA enrichment
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-28 04:56 UTCEPSS rescore
Show 57 more
  1. 2026-06-27 21:24 UTCEG score recompute
  2. 2026-06-27 21:24 UTCGHSA enrichment
  3. 2026-06-27 03:08 UTCEPSS rescore
  4. 2026-06-26 19:56 UTCEG score recompute
  5. 2026-06-26 19:55 UTCGHSA enrichment
  6. 2026-06-25 18:27 UTCEG score recompute
  7. 2026-06-25 18:27 UTCGHSA enrichment
  8. 2026-06-25 13:49 UTCEPSS rescore
  9. 2026-06-24 16:58 UTCEG score recompute
  10. 2026-06-24 16:58 UTCGHSA enrichment
  11. 2026-06-24 14:05 UTCEPSS rescore
  12. 2026-06-23 21:32 UTCEPSS rescore
  13. 2026-06-23 15:30 UTCEG score recompute
  14. 2026-06-23 15:30 UTCGHSA enrichment
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-22 14:25 UTCEPSS rescore
  17. 2026-06-22 13:25 UTCEG score recompute
  18. 2026-06-22 13:25 UTCGHSA enrichment
  19. 2026-06-21 14:56 UTCEPSS rescore
  20. 2026-06-21 14:56 UTCEPSS rescore
  21. 2026-06-21 10:36 UTCEG score recompute
  22. 2026-06-21 10:36 UTCGHSA enrichment
  23. 2026-06-21 01:59 UTCEPSS rescore
  24. 2026-06-21 01:59 UTCEPSS rescore
  25. 2026-06-20 07:44 UTCEG score recompute
  26. 2026-06-20 07:44 UTCGHSA enrichment
  27. 2026-06-19 19:25 UTCEPSS rescore
  28. 2026-06-19 02:38 UTCEG score recompute
  29. 2026-06-19 02:38 UTCGHSA enrichment
  30. 2026-06-18 17:52 UTCEPSS rescore
  31. 2026-06-18 01:10 UTCEG score recompute
  32. 2026-06-18 01:10 UTCGHSA enrichment
  33. 2026-06-17 17:53 UTCEPSS rescore
  34. 2026-06-16 23:43 UTCEG score recompute
  35. 2026-06-16 23:42 UTCGHSA enrichment
  36. 2026-06-16 17:52 UTCEPSS rescore
  37. 2026-06-15 22:14 UTCEG score recompute
  38. 2026-06-15 22:14 UTCGHSA enrichment
  39. 2026-06-15 17:48 UTCEPSS rescore
  40. 2026-06-14 23:18 UTCEPSS rescore
  41. 2026-06-14 20:46 UTCEG score recompute
  42. 2026-06-14 20:46 UTCGHSA enrichment
  43. 2026-06-13 23:00 UTCEPSS rescore
  44. 2026-06-13 23:00 UTCEPSS rescore
  45. 2026-06-13 19:18 UTCEG score recompute
  46. 2026-06-13 19:18 UTCGHSA enrichment
  47. 2026-06-12 23:12 UTCEPSS rescore
  48. 2026-06-12 17:46 UTCEG score recompute
  49. 2026-06-12 17:46 UTCGHSA enrichment
  50. 2026-06-11 16:19 UTCEG score recompute
  51. 2026-06-11 16:19 UTCGHSA enrichment
  52. 2026-06-11 14:00 UTCEPSS rescore
  53. 2026-06-10 22:18 UTCEPSS rescore
  54. 2026-06-10 14:50 UTCEG score recompute
  55. 2026-06-10 14:50 UTCGHSA enrichment
  56. 2026-06-09 13:22 UTCEG score recompute
  57. 2026-06-09 13:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11793?
CVE-2026-11793 is a medium vulnerability published on June 9, 2026. 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…
When was CVE-2026-11793 disclosed?
CVE-2026-11793 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11793 actively exploited?
CVE-2026-11793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11793?
CVE-2026-11793 has a CVSS v3 base score of 4.9 (NVD).
How do I remediate CVE-2026-11793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11793, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-11793

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