CVE-2025-68121

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 48% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 10.0Exploit: None knownExposed: 0

A fix is available — apply it.

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the returned Config, or uses Config.GetConfigForClient. This can cause a client to resume a session with a server that it would not have resumed with during the initial handshake, or cause a server to resume a session with a client that it would not have resumed with during the initial handshake.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity100% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

February 5, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic

GO-2026-4337 - Go Packages

https://pkg.go.dev/vuln/GO-2026-4337
generic
https://groups.google.com/g/golang-announce/c/K09ubi9FQFk
generic

crypto/tls: certificate chains aren't re-checked on resumption · Issue #77217 · golang/go · GitHub

https://go.dev/issue/77217
generic
https://go.dev/cl/737700

Vendor Advisories for CVE-2025-68121(20)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatetcd-0:3.3.23-22.el8ost2026-08-13redhat
redhatoadp/oadp-velero-rhel9:17851808782026-08-06redhat
redhatcontainer-tools:rhel8-8060020260803064027.ad008a3a2026-08-06redhat
redhatcontainer-tools:rhel8-8080020260721142025.63b345852026-08-04redhat
redhatrhc-1:0.2.2-1.el9_2.32026-08-03redhat
redhatrhc-1:0.2.4-8.el9_42026-08-03redhat
redhatosbuild-composer-0:76.1-6.el9_22026-07-29redhat
redhatgrafana-pcp-0:5.1.1-5.el9_2.12026-07-29redhat
redhatgolang-0:1.25.9-1.el9_42026-07-29redhat
redhatgrafana-pcp-0:5.1.1-8.el9_42026-07-29redhat
redhatgolang-0:1.25.9-1.el9_22026-07-29redhat
redhatgrafana-0:9.2.10-27.el9_42026-07-29redhat
redhatgrafana-0:9.0.9-12.el9_22026-07-29redhat
redhatosbuild-composer-0:101.3-4.el9_4.32026-07-29redhat
redhatrhmtc/openshift-migration-registry-rhel8:17839142762026-07-20redhat
redhatexternal-secrets-operator/external-secrets-rhel9:17841134022026-07-16redhat
redhatrhem/flightctl-ui-rhel10:17841945742026-07-16redhat
redhatrhem/flightctl-ui-rhel9:17841277362026-07-15redhat
redhatrhacm2/subctl-rhel9:17829452632026-07-08redhat
redhatrhem/flightctl-ui-rhel9:17835024382026-07-08redhat
redhatcontainernetworking-plugins-1:1.4.0-6.rhaos4.15.el82026-07-06redhat
redhatpodman-3:4.4.1-25.rhaos4.14.el82026-07-01redhat
redhatopenshift4/ovirt-csi-driver-rhel8-operator:17818327412026-07-01redhat
redhatopenshift4/ovirt-csi-driver-rhel9:17819301252026-07-01redhat
redhatskopeo-2:1.9.4-8.rhaos4.12.el82026-06-25redhat
redhatoadp/oadp-velero-rhel9:17798095982026-06-25redhat
redhatskopeo-2:1.11.3-6.rhaos4.13.el82026-06-25redhat
redhatopenshift/mirror-registry-rhel8:17821770122026-06-23redhat
redhatetcd-0:3.4.26-9.5.el9ost2026-06-22redhat
redhatcustom-metrics-autoscaler/custom-metrics-autoscaler-rhel9:17801012392026-06-17redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
golang-1.151.15.15-1 ... 1.15.9-6 (10 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
golang-1.191.19.10-1 ... 1.19.9-1 (12 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
golang-1.241.24.12-1 ... 1.24.9-1 (10 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
golang-1.251.25.0-1, 1.25.0-2, 1.25.1-1, 1.25.2-1, 1.25.3-11.25.6-1—
Go(1)
PackageVulnerable rangeFixed inDependents
stdlib—1.26.0-rc.3—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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 220 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-17 19:30 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
  4. 2026-09-16 05:14 UTCEPSS rescore
  5. 2026-09-15 03:10 UTCEPSS rescore
  6. 2026-09-13 16:46 UTCEPSS rescore
  7. 2026-09-12 15:00 UTCEPSS rescore
  8. 2026-09-11 14:52 UTCEPSS rescore
  9. 2026-09-11 09:36 UTCEPSS rescore
  10. 2026-09-10 09:34 UTCEPSS rescore
  11. 2026-09-08 22:00 UTCEPSS rescore
  12. 2026-09-07 16:00 UTCEPSS rescore
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:06 UTCEPSS rescore
  15. 2026-09-02 14:11 UTCEPSS rescore
  16. 2026-09-01 13:53 UTCEPSS rescore
  17. 2026-08-31 19:34 UTCOSV refresh
  18. 2026-08-30 01:21 UTCEPSS rescore
  19. 2026-08-28 21:40 UTCEPSS rescore
  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-26 14:45 UTCEPSS rescore
  22. 2026-08-25 13:48 UTCEPSS rescore
  23. 2026-08-24 14:16 UTCEPSS rescore
  24. 2026-08-23 00:18 UTCEPSS rescore
  25. 2026-08-21 23:48 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-19 17:03 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:46 UTCEPSS rescore
  5. 2026-08-16 14:55 UTCEPSS rescore
  6. 2026-08-16 02:14 UTCEPSS rescore
  7. 2026-08-15 01:30 UTCEPSS rescore
  8. 2026-08-14 22:53 UTCVendor advisory
  9. 2026-08-14 22:53 UTCGHSA enrichment
  10. 2026-08-14 14:57 UTCVendor advisory
  11. 2026-08-14 14:57 UTCGHSA enrichment
  12. 2026-08-14 11:05 UTCEG score recompute
  13. 2026-08-14 11:05 UTCVendor advisory
  14. 2026-08-14 11:05 UTCGHSA enrichment
  15. 2026-08-13 22:00 UTCEPSS rescore
  16. 2026-08-13 03:24 UTCEG score recompute
  17. 2026-08-13 03:24 UTCVendor advisory
  18. 2026-08-13 03:24 UTCGHSA enrichment
  19. 2026-08-12 13:50 UTCEPSS rescore
  20. 2026-08-11 13:42 UTCEPSS rescore
  21. 2026-08-10 23:59 UTCEPSS rescore
  22. 2026-08-10 09:55 UTCVendor advisory
  23. 2026-08-10 09:55 UTCGHSA enrichment
  24. 2026-08-10 03:20 UTCVendor advisory
  25. 2026-08-10 03:20 UTCGHSA enrichment
  26. 2026-08-09 23:28 UTCVendor advisory
  27. 2026-08-09 23:28 UTCGHSA enrichment
  28. 2026-08-09 19:36 UTCVendor advisory
  29. 2026-08-09 19:36 UTCGHSA enrichment
  30. 2026-08-09 15:44 UTCEG score recompute
  31. 2026-08-09 15:44 UTCVendor advisory
  32. 2026-08-09 15:44 UTCGHSA enrichment
  33. 2026-08-09 13:46 UTCEPSS rescore
  34. 2026-08-08 16:36 UTCEPSS rescore
  35. 2026-08-08 10:20 UTCVendor advisory
  36. 2026-08-08 10:20 UTCGHSA enrichment
  37. 2026-08-08 06:28 UTCVendor advisory
  38. 2026-08-08 06:28 UTCGHSA enrichment
  39. 2026-08-08 02:36 UTCVendor advisory
  40. 2026-08-08 02:36 UTCGHSA enrichment
  41. 2026-08-07 22:42 UTCEG score recompute
  42. 2026-08-07 22:42 UTCVendor advisory
  43. 2026-08-07 22:42 UTCGHSA enrichment
  44. 2026-08-07 16:27 UTCEPSS rescore
  45. 2026-08-06 13:46 UTCEPSS rescore
  46. 2026-08-06 08:32 UTCVendor advisory
  47. 2026-08-06 08:32 UTCGHSA enrichment
  48. 2026-08-06 04:19 UTCEG score recompute
  49. 2026-08-06 04:19 UTCVendor advisory
  50. 2026-08-06 04:19 UTCGHSA enrichment
  51. 2026-08-05 19:17 UTCEPSS rescore
  52. 2026-08-04 10:37 UTCEPSS rescore
  53. 2026-08-03 10:35 UTCEPSS rescore
  54. 2026-08-03 01:55 UTCVendor advisory
  55. 2026-08-03 01:55 UTCGHSA enrichment
  56. 2026-08-02 21:21 UTCEG score recompute
  57. 2026-08-02 21:21 UTCVendor advisory
  58. 2026-08-02 21:21 UTCGHSA enrichment
  59. 2026-08-02 02:26 UTCEPSS rescore
  60. 2026-08-01 04:15 UTCEPSS rescore
  61. 2026-07-30 16:27 UTCEPSS rescore
  62. 2026-07-30 01:30 UTCEPSS rescore
  63. 2026-07-27 14:13 UTCEPSS rescore
  64. 2026-07-26 14:54 UTCEPSS rescore
  65. 2026-07-26 14:54 UTCEPSS rescore
  66. 2026-07-25 14:17 UTCEPSS rescore
  67. 2026-07-25 14:17 UTCEPSS rescore
  68. 2026-07-24 14:17 UTCEPSS rescore
  69. 2026-07-23 14:18 UTCEPSS rescore
  70. 2026-07-23 14:18 UTCEPSS rescore
  71. 2026-07-23 03:02 UTCEG score recompute▲ 5.20
  72. 2026-07-22 14:08 UTCEPSS rescore
  73. 2026-07-21 15:24 UTCEPSS rescore
  74. 2026-07-20 17:08 UTCEPSS rescore
  75. 2026-07-19 14:30 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-68121?
CVE-2025-68121 is a critical vulnerability published on February 5, 2026. During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have failed. This may happen when a user calls Config.Clone and mutates the…
When was CVE-2025-68121 disclosed?
CVE-2025-68121 was first published in the National Vulnerability Database on February 5, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-68121 actively exploited?
CVE-2025-68121 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-2025-68121?
CVE-2025-68121 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2025-68121?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-68121, 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-2025-68121

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