CVE-2020-36158

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 2.2%, top 19% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity88% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

January 5, 2021

Last Modified

November 21, 2024

Advisory Details (9)

Auto-updated Aug 12, 2026
Patch available. Sources: github_commit.
generic

mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start - kernel/git/torvalds/linux.git - Linux kernel source tree

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c455c5ab332773464d02ba17015acdca198f03d
generic

[SECURITY] [DSA 4843-1] linux security update

https://www.debian.org/security/2021/dsa-4843
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20210212-0002/
generic

[1/1] mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start - Patchwork

https://patchwork.kernel.org/project/linux-wireless/patch/20201206084801.26479-1-ruc_zhangxiaohui%40163.com/
generic

[PATCH 1/1] mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start - Xiaohui Zhang

https://lore.kernel.org/r/20201206084801.26479-1-ruc_zhangxiaohui%40163.com
generic

[SECURITY] Fedora 33 Update: kernel-5.10.6-200.fc33 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCHBIRS27VMOGMBHPWP2R7SZRFXT6O6U/
generic Patch Available

[SECURITY] [DLA 2586-1] linux security update

https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
generic Patch Available

[SECURITY] [DLA 2557-1] linux-4.19 security update

https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
github_commit

commit 5c455c5ab332 (torvalds/linux)

Fix landed in torvalds/linux commit 5c455c5ab332 — awaiting tagged release

https://github.com/torvalds/linux/commit/5c455c5ab332773464d02ba17015acdca198f03d

Vendor Advisories for CVE-2020-36158(2)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-virtual-hwe-20.04-edge (5.8.0.45.50) @ groovy2026-05-23ubuntu
ubuntulinux-image-virtual-hwe-16.04-edge (4.15.0.137.133) @ xenial2026-05-23ubuntu
ubuntulinux-image-virtual-hwe-18.04-edge (5.4.0.67.70) @ focal2026-05-23ubuntu
ubuntulinux-image-virtual-lts-xenial (4.4.0.204.210) @ xenial2026-05-23ubuntu
ubuntulinux-image-oem-20.04 (5.6.0.1053.49) @ focal2026-05-23ubuntu
redhatkernel-rt-0:4.18.0-348.rt7.130.el82021-11-09redhat
redhatkernel-0:4.18.0-348.el82021-11-09redhat

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

(7 across 6 ecosystems)
Debian:9(2)
PackageVulnerable rangeFixed inDependents
linux4.9.107-1 ... 4.9.88-1~bpo8+1 (65 versions)4.9.258-1—
linux-4.194.19.132-1~deb9u1, 4.19.132-1~deb9u2, 4.19.146-1~deb9u1, 4.19.152-1~deb9u1, 4.19.160-2~deb9u14.19.171-2~deb9u1—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
linux4.19.118-1 ... 4.19.98-1~bpo9+1 (29 versions)4.19.171-2—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—5.10.5-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—5.10.5-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—5.10.5-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—5.10.5-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(6)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 22× 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 138 total refreshes for this CVE.

  1. 2026-09-18 19:23 UTCEPSS rescore
  2. 2026-09-17 19:22 UTCEPSS rescore
  3. 2026-09-16 14:04 UTCEPSS rescore
  4. 2026-09-15 03:06 UTCEPSS rescore
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  14. 2026-09-01 06:53 UTCOSV refresh
  15. 2026-09-01 03:32 UTCEPSS rescore
  16. 2026-08-30 19:14 UTCEPSS rescore
  17. 2026-08-30 01:18 UTCEPSS rescore
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  1. 2026-08-16 14:52 UTCEPSS rescore
  2. 2026-08-16 02:11 UTCEPSS rescore
  3. 2026-08-15 06:37 UTCOSV refresh
  4. 2026-08-15 01:26 UTCEPSS rescore
  5. 2026-08-13 21:57 UTCEPSS rescore
  6. 2026-08-12 13:47 UTCEPSS rescore
  7. 2026-08-09 13:43 UTCEPSS rescore
  8. 2026-08-08 16:33 UTCEPSS rescore
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  10. 2026-08-06 13:43 UTCEPSS rescore
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  15. 2026-07-30 18:21 UTCOSV refresh
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  22. 2026-07-23 14:15 UTCEPSS rescore
  23. 2026-07-23 14:15 UTCEPSS rescore
  24. 2026-07-23 01:53 UTCEG score recompute
  25. 2026-07-22 22:39 UTCEG score recompute▲ 2.10
  26. 2026-07-22 14:05 UTCEPSS rescore
  27. 2026-07-21 15:22 UTCEPSS rescore
  28. 2026-07-21 15:22 UTCEPSS rescore
  29. 2026-07-20 17:04 UTCEPSS rescore
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  41. 2026-07-13 06:10 UTCEPSS rescore
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  43. 2026-07-13 03:08 UTCOSV refresh
  44. 2026-07-12 05:44 UTCEPSS rescore
  45. 2026-07-11 08:25 UTCEPSS rescore
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  47. 2026-07-09 19:07 UTCEPSS rescore
  48. 2026-07-08 15:12 UTCEPSS rescore
  49. 2026-07-07 13:43 UTCEPSS rescore
  50. 2026-07-06 16:25 UTCEPSS rescore
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  64. 2026-06-24 14:03 UTCEPSS rescore
  65. 2026-06-24 12:48 UTCOSV refresh
  66. 2026-06-23 21:31 UTCEPSS rescore
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  68. 2026-06-21 14:54 UTCEPSS rescore
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  72. 2026-06-18 17:50 UTCEPSS rescore
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  74. 2026-06-17 17:50 UTCEPSS rescore
  75. 2026-06-16 17:50 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-36158?
CVE-2020-36158 is a high vulnerability published on January 5, 2021. mwifiexcmd80211adhocstart in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.
When was CVE-2020-36158 disclosed?
CVE-2020-36158 was first published in the National Vulnerability Database on January 5, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-36158 actively exploited?
CVE-2020-36158 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 18.2% of all scored CVEs.
What is the CVSS score of CVE-2020-36158?
CVE-2020-36158 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2020-36158?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36158, 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-2020-36158

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