CVE-2026-11774

HIGHPre-NVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-06-11. a secondary CVSS source baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.6Exploit: None knownExposed: 0

A fix is available — apply it.

An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasl_io_start_packet(), adding sizeof(uint32_t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap buffer overflow of up to approximately 2 megabytes of attacker-controlled data. After a successful SASL bind with integrity protection (SSF > 0), a remote attacker can cause a Denial of Service (DoS) or achieve Remote Code Execution (RCE). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, enrolled host, or service account can trigger this vulnerability over the network. This flaw is independent of CVE-2025-14905, which patched schema.c only and did not modify sasl_io.c.

CVSS v3
7.6
EG Score
7.6(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity76% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

June 11, 2026

Last Modified

July 15, 2026

Advisory Details (3)

Auto-updated Jun 11, 2026
Patch available. Sources: redhat.
generic

Jira

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

2484916 – (CVE-2026-11774) CVE-2026-11774 389-ds-base: 389-ds-base: integer overflow in SASL packet length bypasses size limit leading to heap buffer overflow

https://bugzilla.redhat.com/show_bug.cgi?id=2484916
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-11774

Vendor Advisories for CVE-2026-11774(18)

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

Patch Availability(17)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdirsrv/dirsrv-container-rhel10:17834521002026-07-08redhat
redhat389-ds-base-0:3.0.6-19.el10_02026-07-08redhat
redhatredhat-ds:12-9020020260703060155.1674d5742026-07-08redhat
redhat389-ds-base-0:2.2.4-19.el9_22026-07-08redhat
redhat389-ds-base-0:2.6.1-22.el9_62026-07-08redhat
redhatredhat-ds:11-8060020260702180044.0ca98e7e2026-07-07redhat
redhatredhat-ds:11-8100020260702145313.37ed7c032026-07-07redhat
redhatredhat-ds:12-9040020260703055735.1674d5742026-07-07redhat
redhat389-ds-base-0:3.2.0-8.el10_22026-07-07redhat
redhat389-ds-base-0:1.3.11.1-13.el7_92026-07-07redhat
redhat389-ds:1.4-8100020260626120929.25e700aa2026-07-07redhat
redhat389-ds-base-0:2.8.0-8.el9_82026-07-07redhat
redhatredhat-ds:11-8080020260702180836.f969626e2026-07-07redhat
redhat389-ds:1.4-8040020260629123121.96015a922026-07-07redhat
redhat389-ds:1.4-8060020260626130540.824efc522026-07-07redhat
redhat389-ds:1.4-8080020260630025241.6dbb38032026-07-07redhat
redhat389-ds-base-0:2.4.5-26.el9_42026-07-07redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
389-ds-base1.4.4.11-2 ... 3.1.2+vendor1-2 (23 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 6× in last 7d / 71× 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 297 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-11774?
CVE-2026-11774 is a high vulnerability published on June 11, 2026. An integer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). In sasliostartpacket(), adding sizeof(uint32t) to a crafted SASL packet length prefix of 0xFFFFFFFC causes unsigned wraparound to zero, bypassing the nsslapd-maxsasliosize limit and leading to a heap…
When was CVE-2026-11774 disclosed?
CVE-2026-11774 was first published in the National Vulnerability Database on June 11, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11774 actively exploited?
CVE-2026-11774 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.7% of all scored CVEs.
What is the CVSS score of CVE-2026-11774?
CVE-2026-11774 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-11774?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11774, 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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