CVE-2026-68742

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-03. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in SSSD. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 3, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 3, 2026
Patch available. Sources: redhat.
redhat

2509762 – (CVE-2026-68742) CVE-2026-68742 sssd: sssd: NSS responder out-of-bounds read via unchecked addrlen in GETHOSTBYADDR

https://bugzilla.redhat.com/show_bug.cgi?id=2509762
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-68742

Vendor Advisories for CVE-2026-68742(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 rangeFix by version rangeDependents
sssd2.10.1-1 ... 2.9.5-5 (47 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
sssd2.10.1-1 ... 2.9.5-5 (26 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
sssd2.10.1-2 ... 2.13.1-3 (11 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 60× 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 157 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-68742?
CVE-2026-68742 is a medium vulnerability published on August 3, 2026. A flaw was found in SSSD. The sssnssprotocolparseaddr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and…
When was CVE-2026-68742 disclosed?
CVE-2026-68742 was first published on August 3, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68742 actively exploited?
CVE-2026-68742 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-68742?
CVE-2026-68742 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-68742?
A fix for CVE-2026-68742 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-68742 are linked in the Vendor Advisories panel on this page.

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