CVE-2026-11793

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM 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
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 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(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 7, 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.

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
389-ds-base1.4.4.11-2 ... 3.3.0-2 (25 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
389-ds-base2.3.1+dfsg1-1 ... 3.3.0-2 (16 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
389-ds-base3.1.2+dfsg1-1 ... 3.3.0-2 (6 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 35× 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.

Showing the most recent 100 of 185 total refreshes for this CVE.

  1. 2026-09-16 05:14 UTCEPSS rescore
  2. 2026-09-14 04:37 UTCEG score recompute
  3. 2026-09-14 04:37 UTCGHSA enrichment
  4. 2026-09-13 16:46 UTCEPSS rescore
  5. 2026-09-12 15:00 UTCEPSS rescore
  6. 2026-09-11 14:52 UTCEPSS rescore
  7. 2026-09-11 09:36 UTCEPSS rescore
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-04 05:06 UTCEPSS rescore
  13. 2026-09-02 14:11 UTCEPSS rescore
  14. 2026-09-01 13:53 UTCEPSS rescore
  15. 2026-09-01 04:39 UTCEPSS rescore
  16. 2026-08-31 00:56 UTCEG score recompute
  17. 2026-08-31 00:56 UTCGHSA enrichment
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 01:21 UTCEPSS rescore
  20. 2026-08-28 21:40 UTCEPSS rescore
  21. 2026-08-27 14:24 UTCEPSS rescore
  22. 2026-08-25 13:48 UTCEPSS rescore
  23. 2026-08-25 00:51 UTCEG score recompute
  24. 2026-08-25 00:51 UTCGHSA enrichment
  25. 2026-08-23 11:15 UTCEG score recompute
Show 75 more
  1. 2026-08-23 11:15 UTCGHSA enrichment
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:48 UTCEPSS rescore
  4. 2026-08-21 12:24 UTCEG score recompute
  5. 2026-08-21 12:24 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 09:20 UTCEG score recompute
  8. 2026-08-20 09:20 UTCGHSA enrichment
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-17 02:47 UTCEG score recompute
  12. 2026-08-17 02:47 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-16 01:19 UTCEG score recompute
  16. 2026-08-16 01:19 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 23:50 UTCGHSA enrichment
  19. 2026-08-13 22:22 UTCEG score recompute
  20. 2026-08-13 22:22 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-12 13:50 UTCEPSS rescore
  23. 2026-08-12 13:44 UTCEG score recompute
  24. 2026-08-12 13:44 UTCGHSA enrichment
  25. 2026-08-11 13:42 UTCEPSS rescore
  26. 2026-08-11 12:14 UTCEG score recompute
  27. 2026-08-11 12:14 UTCGHSA enrichment
  28. 2026-08-10 23:59 UTCEPSS rescore
  29. 2026-08-10 10:44 UTCEG score recompute
  30. 2026-08-10 10:44 UTCGHSA enrichment
  31. 2026-08-09 13:46 UTCEPSS rescore
  32. 2026-08-09 09:15 UTCEG score recompute
  33. 2026-08-09 09:15 UTCGHSA enrichment
  34. 2026-08-08 16:37 UTCEPSS rescore
  35. 2026-08-08 07:48 UTCEG score recompute
  36. 2026-08-08 07:48 UTCGHSA enrichment
  37. 2026-08-07 06:20 UTCEG score recompute
  38. 2026-08-07 06:20 UTCGHSA enrichment
  39. 2026-08-07 05:38 UTCEG score recompute
  40. 2026-08-07 05:38 UTCGHSA enrichment
  41. 2026-08-07 01:16 UTCEG score recompute
  42. 2026-08-07 01:16 UTCGHSA enrichment
  43. 2026-08-06 13:46 UTCEPSS rescore
  44. 2026-08-05 23:48 UTCEG score recompute
  45. 2026-08-05 23:48 UTCGHSA enrichment
  46. 2026-08-05 19:17 UTCEPSS rescore
  47. 2026-08-04 22:20 UTCEG score recompute
  48. 2026-08-04 22:20 UTCGHSA enrichment
  49. 2026-08-04 15:09 UTCEPSS rescore
  50. 2026-08-04 10:38 UTCEPSS rescore
  51. 2026-08-03 19:04 UTCEG score recompute
  52. 2026-08-03 19:04 UTCGHSA enrichment
  53. 2026-08-03 10:35 UTCEPSS rescore
  54. 2026-08-02 17:35 UTCEG score recompute
  55. 2026-08-02 17:35 UTCGHSA enrichment
  56. 2026-08-02 02:26 UTCEPSS rescore
  57. 2026-08-01 16:07 UTCEG score recompute
  58. 2026-08-01 16:07 UTCGHSA enrichment
  59. 2026-08-01 04:15 UTCEPSS rescore
  60. 2026-07-31 14:36 UTCEG score recompute
  61. 2026-07-31 14:36 UTCGHSA enrichment
  62. 2026-07-30 16:27 UTCEPSS rescore
  63. 2026-07-30 11:12 UTCEG score recompute
  64. 2026-07-30 11:12 UTCGHSA enrichment
  65. 2026-07-30 01:30 UTCEPSS rescore
  66. 2026-07-29 05:26 UTCEG score recompute
  67. 2026-07-29 05:26 UTCGHSA enrichment
  68. 2026-07-28 15:36 UTCEPSS rescore
  69. 2026-07-27 14:13 UTCEPSS rescore
  70. 2026-07-27 08:23 UTCEG score recompute
  71. 2026-07-27 08:23 UTCGHSA enrichment
  72. 2026-07-26 14:54 UTCEPSS rescore
  73. 2026-07-26 14:54 UTCEPSS rescore
  74. 2026-07-26 06:51 UTCEG score recompute
  75. 2026-07-26 06:51 UTCGHSA enrichment

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 August 7, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 79.3% of all scored CVEs.
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

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