CVE-2026-58846

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

In kvm_iommu_map_sg of iommu.c, there is a possible use after free due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 24, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
No patch confirmed yet.
generic

Android Security Bulletin—September 2026  |  Android Open Source Project

https://source.android.com/docs/security/bulletin/2026/2026-09-01
generic

ad34d15396568919a8ddd306ce2120e76d111b7c - kernel/common - Git at Google

https://android.googlesource.com/kernel/common/+/ad34d15396568919a8ddd306ce2120e76d111b7c

Vendor Advisories for CVE-2026-58846(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× 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. 2026-09-25 05:27 UTCGHSA enrichment
  2. 2026-09-24 16:38 UTCEG score recompute
  3. 2026-09-24 16:38 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 09:59 UTCGHSA enrichment
  6. 2026-09-23 21:10 UTCEG score recompute
  7. 2026-09-23 21:10 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 08:21 UTCGHSA enrichment
  10. 2026-09-22 19:32 UTCEG score recompute
  11. 2026-09-22 19:32 UTCGHSA enrichment
  12. 2026-09-22 06:42 UTCGHSA enrichment
  13. 2026-09-21 17:53 UTCGHSA enrichment
  14. 2026-09-21 05:04 UTCGHSA enrichment
  15. 2026-09-20 16:14 UTCGHSA enrichment
  16. 2026-09-20 03:25 UTCEG score recompute
  17. 2026-09-20 03:25 UTCGHSA enrichment
  18. 2026-09-19 14:36 UTCGHSA enrichment
  19. 2026-09-19 01:46 UTCGHSA enrichment
  20. 2026-09-18 12:58 UTCGHSA enrichment
  21. 2026-09-18 00:09 UTCEG score recompute
  22. 2026-09-18 00:09 UTCGHSA enrichment
  23. 2026-09-17 19:31 UTCEPSS rescore
  24. 2026-09-17 11:20 UTCGHSA enrichment
  25. 2026-09-16 22:30 UTCEG score recompute
Show 30 more
  1. 2026-09-16 22:30 UTCGHSA enrichment
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 09:40 UTCGHSA enrichment
  4. 2026-09-15 20:51 UTCGHSA enrichment
  5. 2026-09-15 07:34 UTCEG score recompute
  6. 2026-09-15 07:34 UTCGHSA enrichment
  7. 2026-09-15 03:11 UTCEPSS rescore
  8. 2026-09-14 18:45 UTCGHSA enrichment
  9. 2026-09-14 05:56 UTCGHSA enrichment
  10. 2026-09-13 17:07 UTCGHSA enrichment
  11. 2026-09-13 04:18 UTCGHSA enrichment
  12. 2026-09-12 15:29 UTCGHSA enrichment
  13. 2026-09-12 02:40 UTCEG score recompute
  14. 2026-09-12 02:40 UTCGHSA enrichment
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 13:51 UTCEG score recompute
  17. 2026-09-11 13:51 UTCGHSA enrichment
  18. 2026-09-11 01:01 UTCGHSA enrichment
  19. 2026-09-10 12:12 UTCEG score recompute
  20. 2026-09-10 12:12 UTCGHSA enrichment
  21. 2026-09-10 09:35 UTCEPSS rescore
  22. 2026-09-09 23:23 UTCGHSA enrichment
  23. 2026-09-09 10:34 UTCGHSA enrichment
  24. 2026-09-08 21:45 UTCEG score recompute
  25. 2026-09-08 21:45 UTCGHSA enrichment
  26. 2026-09-08 20:55 UTCEG score recompute▲ 7.80
  27. 2026-09-08 20:54 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  28. 2026-09-08 19:30 UTCNVD update
  29. 2026-09-08 18:31 UTCEG score recompute
  30. 2026-09-08 18:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58846?
CVE-2026-58846 is a high vulnerability published on September 8, 2026. In kvmiommumap_sg of iommu.c, there is a possible use after free due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
When was CVE-2026-58846 disclosed?
CVE-2026-58846 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58846 actively exploited?
CVE-2026-58846 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 99.5% of all scored CVEs.
What is the CVSS score of CVE-2026-58846?
CVE-2026-58846 has a CVSS v3.1 base score of 7.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-58846?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58846, 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.

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