CVE-2026-68742

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH 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%CVSS: 5.5Exploit: None knownExposed: 0

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

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
5.5(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 18, 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 rangeFixed inDependents
sssd2.10.1-1 ... 2.9.5-5 (47 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
sssd2.10.1-1 ... 2.9.5-5 (23 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
sssd2.10.1-2 ... 2.12.0-4 (8 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 55× 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. 2026-08-19 19:00 UTCEG score recompute
  2. 2026-08-19 19:00 UTCGHSA enrichment
  3. 2026-08-19 17:04 UTCEPSS rescore
  4. 2026-08-18 16:49 UTCEG score recompute
  5. 2026-08-18 16:49 UTCGHSA enrichment
  6. 2026-08-18 13:49 UTCEPSS rescore
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 09:41 UTCEG score recompute
  9. 2026-08-18 09:41 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 08:46 UTCEG score recompute
  12. 2026-08-17 08:46 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 07:51 UTCEG score recompute
  16. 2026-08-16 07:51 UTCGHSA enrichment
  17. 2026-08-16 02:15 UTCEPSS rescore
  18. 2026-08-15 06:56 UTCEG score recompute
  19. 2026-08-15 06:56 UTCGHSA enrichment
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 05:30 UTCEG score recompute
  22. 2026-08-14 05:30 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-13 04:35 UTCEG score recompute
  25. 2026-08-13 04:35 UTCGHSA enrichment
Show 30 more
  1. 2026-08-12 13:51 UTCEPSS rescore
  2. 2026-08-12 03:40 UTCGHSA enrichment
  3. 2026-08-11 02:44 UTCGHSA enrichment
  4. 2026-08-10 01:50 UTCEG score recompute
  5. 2026-08-10 01:50 UTCGHSA enrichment
  6. 2026-08-09 13:47 UTCEPSS rescore
  7. 2026-08-09 00:55 UTCEG score recompute
  8. 2026-08-09 00:55 UTCGHSA enrichment
  9. 2026-08-08 16:37 UTCEPSS rescore
  10. 2026-08-07 23:59 UTCEG score recompute
  11. 2026-08-07 23:59 UTCGHSA enrichment
  12. 2026-08-06 23:04 UTCEG score recompute
  13. 2026-08-06 23:04 UTCGHSA enrichment
  14. 2026-08-06 13:47 UTCEPSS rescore
  15. 2026-08-05 22:09 UTCEG score recompute
  16. 2026-08-05 22:09 UTCGHSA enrichment
  17. 2026-08-05 19:17 UTCEPSS rescore
  18. 2026-08-05 19:17 UTCEPSS rescore
  19. 2026-08-04 21:14 UTCEG score recompute
  20. 2026-08-04 21:14 UTCGHSA enrichment
  21. 2026-08-04 15:10 UTCEPSS rescore
  22. 2026-08-03 20:19 UTCEG score recompute
  23. 2026-08-03 20:19 UTCGHSA enrichment
  24. 2026-08-03 20:14 UTCEG score recompute
  25. 2026-08-03 20:14 UTCGHSA enrichment
  26. 2026-08-03 16:56 UTCEG score recompute
  27. 2026-08-03 16:56 UTCGHSA enrichment
  28. 2026-08-03 10:31 UTCEG score recompute
  29. 2026-08-03 10:16 UTCEG score recompute
  30. 2026-08-03 10:13 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

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 in the National Vulnerability Database on August 3, 2026, with the most recent update on August 18, 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% probability of exploitation in the next 30 days, which ranks it in the top 96.9% of all scored CVEs.
What is the CVSS score of CVE-2026-68742?
CVE-2026-68742 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-68742?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68742, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-68742

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