CVE-2026-11310

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week

Also known asEUVD-2026-39548 (ENISA EUVD) · GHSA-h4wh-367g-85gm (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wolfSSL TLS/DTLS usage is not impacted. wolfSSL's X509_verify_cert() temporarily loads each caller-supplied untrusted intermediate into the certificate manager but failed to drop them before the trusted-store check, so an untrusted intermediate could anchor the path itself. An attacker can present a chain that never reaches a configured trust anchor and have it accepted, resulting in acceptance of an attacker-controlled certificate. This is certificate verification independent of TLS (e.g. S/MIME/CMS, code/firmware signing, JWT/JWS x5c), is not specific to any key type or algorithm, and a single untrusted intermediate suffices. The default wolfSSL TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only TLS applications doing manual or deferred peer verification through this API are, which also requires --enable-sessioncerts.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.2%
EPSS %ILE
14th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 25, 2026

Last Modified

June 26, 2026

Advisory Details (2)

Auto-updated Jun 26, 2026
Fix referenced — no release confirmed yet. Sources: github_pr.
Web pageMentions a patch (unverified)

wolfSSL Security Vulnerabilities | Documentation - wolfSSL

https://www.wolfssl.com/docs/security-vulnerabilities/
GitHub pull request

Fixes for OpenSSL compatibility layer

Fix merged in wolfSSL/wolfssl PR #10674 on 2026-06-12 — awaiting tagged release

https://github.com/wolfSSL/wolfssl/pull/10674

Vendor Advisories for CVE-2026-11310(2)

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
wolfssl4.6.0+p1-0+deb11u1 ... 5.9.2-1 (40 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.5.4-2 ... 5.9.2-1 (27 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
wolfssl5.7.2-0.1 ... 5.9.2-1 (14 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 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 259 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 159 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-10-25 14:51 UTCEG score recompute
  5. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-24 12:30 UTCEG score recompute
  7. 2026-10-24 12:30 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-18 05:05 UTCEG score recompute
  15. 2026-10-17 19:10 UTCEG score recompute
  16. 2026-10-17 19:10 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-10-13 22:54 UTCOSV refresh
  22. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-12 16:37 UTCEG score recompute
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-10-11 20:13 UTCEG score recompute
Show 75 more
  1. 2026-10-11 18:25 UTCEG score recompute
  2. 2026-10-11 14:59 UTCEG score recompute
  3. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-09-23 08:29 UTCEG score recompute
  19. 2026-09-23 08:29 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-09-18 07:20 UTCEG score recompute
  23. 2026-09-18 07:20 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-09-14 01:17 UTCEG score recompute
  26. 2026-09-14 01:17 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-09-13 09:37 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-09-12 15:42 UTCEG score recompute
  30. 2026-09-12 15:42 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  34. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  35. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  38. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  39. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  40. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-08-30 19:30 UTCEG score recompute
  42. 2026-08-30 19:30 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  46. 2026-08-27 23:17 UTCEG score recompute
  47. 2026-08-27 23:17 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  48. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  49. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  50. 2026-08-25 01:32 UTCEG score recompute
  51. 2026-08-25 01:32 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-08-24 13:08 UTCEG score recompute
  53. 2026-08-24 13:08 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-08-23 23:10 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-08-23 10:45 UTCEG score recompute
  56. 2026-08-23 10:45 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  58. 2026-08-22 22:22 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-08-22 09:58 UTCEG score recompute
  60. 2026-08-22 09:58 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  62. 2026-08-21 20:12 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-08-21 07:49 UTCEG score recompute
  64. 2026-08-21 07:49 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  66. 2026-08-20 19:25 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-08-20 07:01 UTCEG score recompute
  68. 2026-08-20 07:01 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  70. 2026-08-19 13:43 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-08-19 01:14 UTCEG score recompute
  72. 2026-08-19 01:14 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  74. 2026-08-17 14:07 UTCEG score recompute
  75. 2026-08-17 14:07 UTCGHSA enrichmentGHSA-h4wh-367g-85gm · GitHub severity HIGH · GitHub CVSS 7.5

Frequently asked(5)

What is CVE-2026-11310?
CVE-2026-11310 is a high-severity vulnerability; its CVE record was published on June 25, 2026. X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSLX509verifycert()). This affects only builds with --enable-opensslextra (OPENSSLEXTRA) and whose application validates certificates by calling X509verifycert() with caller-supplied untrusted intermediate certificates;…
When was the CVE record for CVE-2026-11310 published?
The CVE record for CVE-2026-11310 was published on June 25, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 26, 2026; the record at its source may have been updated since.
Is CVE-2026-11310 actively exploited?
CVE-2026-11310 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-11310?
CVE-2026-11310 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-11310?
A fix for CVE-2026-11310 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-11310 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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