CVE-2026-49426

LOWPre-NVD 3.33.3
EchelonGraph scoreMEDIUM confidence

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

This low-severity CVE scores 3.3 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.1% (3rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from CISA-ADP (Vulnrichment) CVSS v3.1
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS

Also known asEUVD-2026-62295 (ENISA EUVD)Source: ENISA EUVD

3.3EG
EchelonGraph verdictMonitorNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 3.3Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (FreeBSD) lists FreeBSD versions 15.1-RELEASE up to but not including p1, 15.0-RELEASE up to but not including p11, 14.4-RELEASE up to but not including p7 and 14.3-RELEASE up to but not including p16 as affected. No release containing a fix is confirmed on record.

When auditing a system call executed via ptrace(PT_SC_REMOTE), the kernel passed the return value of an internal setup function to AUDIT_SYSCALL_EXIT() rather than the actual result of the executed system call. As a result, committed audit records for system calls which returned an error do not reflect the true outcome of the operation. That is, they indicate that the operation succeeded when it in fact failed.

Audit records for system calls executed via ptrace(PT_SC_REMOTE) may show an incorrect error status. An attacker with the ability to debug a process could use this to produce misleading audit trails, potentially undermining audit-based Intrusion Detection Systems (IDS).

CVSS v3
3.3
EG Score
3.3LOWmedium confidence
EG Risk
15
EG Risk 15/100

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)
Severity33% × 45%
Impact severity (EG Severity): CVSS 3.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.1%
EPSS %ILE
3rd
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 (3.3): severity, escalated by confirmed exploitation. This CVE's 3.3 is its impact severity (EG Severity), not escalated.

EG Severity
3.3 LOWCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.CISA-ADP (Vulnrichment) CVSS v3.1 · CVSS v3.1
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

August 19, 2026

Last Modified

September 1, 2026

References (1)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 37× 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.

  1. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-29 17:22 UTCEG score recompute
  5. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-25 14:22 UTCEG score recompute
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-18 03:34 UTCEG score recompute
  19. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-10-12 16:00 UTCEG score recompute
Show 60 more
  1. 2026-10-11 19:43 UTCEG score recompute
  2. 2026-10-11 16:57 UTCEG score recompute
  3. 2026-10-11 14:21 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  7. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-06 08:01 UTCEG score recompute
  11. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-10-03 04:27 UTCEG score recompute
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-09-30 08:52 UTCEG score recompute
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-27 07:14 UTCEG score recompute
  21. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-24 08:47 UTCEG score recompute
  24. 2026-09-21 13:14 UTCEG score recompute
  25. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  27. 2026-09-18 17:41 UTCEG score recompute
  28. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  29. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-09-15 22:08 UTCEG score recompute
  31. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  32. 2026-09-13 02:35 UTCEG score recompute
  33. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  34. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  35. 2026-09-10 07:02 UTCEG score recompute
  36. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  37. 2026-09-07 11:30 UTCEG score recompute
  38. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  39. 2026-09-04 15:57 UTCEG score recompute
  40. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  41. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-09-01 10:05 UTCEG score recompute
  43. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  46. 2026-08-29 14:31 UTCEG score recompute
  47. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  48. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  49. 2026-08-26 18:03 UTCEG score recomputeFirst assessed: 3.3 LOW
  50. 2026-08-26 18:01 UTCMITRE cvelistV5CVSS v3 → 3.3 · severity → LOW
  51. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  52. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  53. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  54. 2026-08-22 01:50 UTCEG score recompute
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  57. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  58. 2026-08-19 06:21 UTCNVD update
  59. 2026-08-19 06:17 UTCEG score recompute
  60. 2026-08-19 06:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-49426?
CVE-2026-49426 is a low-severity vulnerability; its CVE record was published on August 19, 2026. When auditing a system call executed via ptrace(PT_SC_REMOTE), the kernel passed the return value of an internal setup function to AUDIT_SYSCALL_EXIT() rather than the actual result of the executed system call. As a result, committed audit records for system calls which returned an error do not…
When was CVE-2026-49426 made public?
CVE-2026-49426 was made public on June 30, 2026: that is the date its CVE record's CNA, FreeBSD, gives for when the vulnerability was made public. The CVE record itself was published on August 19, 2026. EchelonGraph's copy of the record carries a last-modified date of September 1, 2026; the record at its source may have been updated since.
Is CVE-2026-49426 actively exploited?
CVE-2026-49426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49426?
CVE-2026-49426 has a CVSS v3.1 base score of 3.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-49426?
No fix for CVE-2026-49426 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (FreeBSD) lists FreeBSD versions 15.1-RELEASE up to but not including p1, 15.0-RELEASE up to but not including p11, 14.4-RELEASE up to but not including p7 and 14.3-RELEASE up to but not including p16 as affected. No release containing a fix is confirmed on record.

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