CVE-2022-42719

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-10-14. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.4%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.4%
EPSS %ILE
71st
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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

October 13, 2022

Last Modified

October 14, 2026

Advisory Details (10)

Auto-updated Aug 4, 2026
Patch available.
Web page

[SECURITY] Fedora 35 Update: kernel-5.19.15-101.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
Web page

[SECURITY] Fedora 37 Update: kernel-5.19.15-301.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
Web page

[SECURITY] Fedora 36 Update: kernel-5.19.15-201.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
Web pageMentions a patch (unverified)

[SECURITY] [DLA 3173-1] linux-5.10 security update

https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Web page

wifi: mac80211: fix MBSSID parsing use-after-free - kernel/git/wireless/wireless.git - Wireless tree for the current Linux release

https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=ff05d4b45dd89b922578dac497dcabf57cf771c6
Web page

Making sure you're not a bot!

https://bugzilla.suse.com/show_bug.cgi?id=1204051
Web page

oss-security - Re: Various Linux Kernel WLAN security issues (RCE/DOS) found

http://www.openwall.com/lists/oss-security/2022/10/13/5
Web page

oss-security - Various Linux Kernel WLAN security issues (RCE/DOS) found

http://www.openwall.com/lists/oss-security/2022/10/13/2

Patch Availability(9)

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

(15 across 15 ecosystems)
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
linux-lts—
  • every version up to 5.15.74-r0: fixed in 5.15.74-r0
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
linux-5.105.10.136-1~deb10u1, 5.10.136-1~deb10u2, 5.10.136-1~deb10u3
  • every version up to 5.10.149-2~deb10u1: fixed in 5.10.149-2~deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (20 versions)
  • every version up to 5.10.149-1: fixed in 5.10.149-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.2-1: fixed in 6.0.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.2-1: fixed in 6.0.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.0.2-1: fixed in 6.0.2-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(9)

Data Freshness Timeline

(refreshed 11× 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 93 of 196 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. 7 repeat rows among the latest 100 are merged into the row they repeat. The 103 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-22 16:30 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  2. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  3. 2026-10-21 06:07 UTCEG score recompute
  4. 2026-10-21 06:07 UTCVendor advisory
  5. 2026-10-21 06:07 UTCGHSA enrichmentGHSA-3hfv-3383-4hvp · GitHub severity HIGH · GitHub CVSS 8.8
  6. 2026-10-20 16:29 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  7. 2026-10-19 16:28 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  8. 2026-10-18 16:28 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  9. 2026-10-18 08:26 UTCEG score recompute
  10. 2026-10-17 16:29 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  11. 2026-10-16 16:35 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  12. 2026-10-15 16:28 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  13. 2026-10-14 19:32 UTCGHSA enrichmentGHSA-3hfv-3383-4hvp · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-14 18:38 UTCEG score recompute
  15. 2026-10-14 18:37 UTCGHSA enrichmentGHSA-3hfv-3383-4hvp · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-14 16:29 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  17. 2026-10-13 16:29 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  18. 2026-10-12 18:46 UTCEG score recompute
  19. 2026-10-12 16:30 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  20. 2026-10-11 22:09 UTCEG score recompute
  21. 2026-10-11 13:44 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  22. 2026-10-10 19:57 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  23. 2026-10-09 20:04 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  24. 2026-10-08 17:05 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  25. 2026-10-07 23:45 UTCEPSS rescoreEPSS 1.3% · 69th percentile
Show 68 more
  1. 2026-10-06 15:14 UTCEPSS rescoreEPSS 1.3% · 69th percentile
  2. 2026-10-05 17:40 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  3. 2026-10-04 23:19 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  4. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  5. 2026-10-02 16:23 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  6. 2026-10-01 19:47 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  7. 2026-09-30 16:07 UTCEG score recompute
  8. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  9. 2026-09-29 15:16 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  10. 2026-09-28 13:48 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  11. 2026-09-27 13:42 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  12. 2026-09-26 15:55 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  13. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  14. 2026-09-24 07:56 UTCOSV refresh
  15. 2026-09-23 13:45 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  16. 2026-09-20 20:13 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  17. 2026-09-19 15:38 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  18. 2026-09-16 14:05 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  19. 2026-09-16 05:10 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  20. 2026-09-15 03:07 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  21. 2026-09-13 16:44 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  22. 2026-09-12 14:57 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  23. 2026-09-11 14:50 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  24. 2026-09-11 09:33 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  25. 2026-09-08 21:57 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  26. 2026-09-07 15:58 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  27. 2026-09-06 13:45 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  28. 2026-09-05 15:25 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  29. 2026-09-05 01:48 UTCOSV refresh
  30. 2026-09-04 13:57 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  31. 2026-09-04 05:04 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  32. 2026-09-02 14:09 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  33. 2026-09-01 13:51 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  34. 2026-08-30 19:14 UTCEPSS rescoreEPSS 1.3% · 68th percentile
  35. 2026-08-30 01:19 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  36. 2026-08-28 21:38 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  37. 2026-08-27 14:22 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  38. 2026-08-26 14:43 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  39. 2026-08-25 13:46 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  40. 2026-08-24 14:13 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  41. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  42. 2026-08-21 23:46 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  43. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  44. 2026-08-19 17:01 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  45. 2026-08-18 13:45 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  46. 2026-08-18 13:01 UTCOSV refresh
  47. 2026-08-17 13:44 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  48. 2026-08-16 14:53 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  49. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  50. 2026-08-15 01:27 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  51. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  52. 2026-08-12 13:48 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  53. 2026-08-11 13:39 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  54. 2026-08-09 13:44 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  55. 2026-08-08 16:34 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  56. 2026-08-07 16:24 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  57. 2026-08-06 13:44 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  58. 2026-08-05 19:15 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  59. 2026-08-04 15:07 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  60. 2026-08-04 10:35 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  61. 2026-08-03 10:33 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  62. 2026-08-03 08:27 UTCOSV refresh
  63. 2026-08-02 02:24 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  64. 2026-08-01 04:13 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  65. 2026-07-30 16:25 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  66. 2026-07-30 01:28 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  67. 2026-07-28 15:34 UTCEPSS rescoreEPSS 1.3% · 67th percentile
  68. 2026-07-26 14:52 UTCEPSS rescoreEPSS 1.3% · 67th percentile

Frequently asked(5)

What is CVE-2022-42719?
CVE-2022-42719 is a high-severity vulnerability; its CVE record was published on October 13, 2022. A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.
When was the CVE record for CVE-2022-42719 published?
The CVE record for CVE-2022-42719 was published on October 13, 2022. 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 October 14, 2026; the record at its source may have been updated since.
Is CVE-2022-42719 actively exploited?
CVE-2022-42719 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.4% probability of exploitation in the next 30 days (71st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-42719?
CVE-2022-42719 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-42719?
A fix for CVE-2022-42719 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-42719 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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