CVE-2022-2078

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

Score 5.5 from GitHub Security Advisory published 2022-07-01. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
5.5EG
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).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 1.0%CVSS: 5.5Exploit: Public PoCExposed services: Not assessed

A fix is available — apply it.

A vulnerability was found in the Linux kernel's nft_set_desc_concat_parse() function .This flaw allows an attacker to trigger a buffer overflow via nft_set_desc_concat_parse() , causing a denial of service and possibly to run code.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100

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)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 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 BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
1.0%
EPSS %ILE
63rd
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 (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.0% within 30 daysSource: FIRST EPSS. 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 (exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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 30, 2022

Last Modified

October 14, 2026

Advisory Details (4)

Auto-updated Oct 14, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

2096178 – (CVE-2022-2078) CVE-2022-2078 kernel: buffer overflow in nft_set_desc_concat_parse()

Affected: Red Hat Enterprise Linux 9

https://bugzilla.redhat.com/show_bug.cgi?id=2096178
Web page

netfilter: nf_tables: sanitize nft_set_desc_concat_parse() - kernel/git/torvalds/linux.git - Linux kernel source tree

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nf_tables_api.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85
Web page

[SECURITY] [DSA 5161-1] linux security update

https://www.debian.org/security/2022/dsa-5161

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-headers-oem-22.04 (5.17.0.1013.12) @ jammy2026-05-25ubuntu
redhatkernel-0:4.18.0-372.91.1.el8_62024-02-07redhat
redhatkernel-0:4.18.0-425.3.1.el82022-11-08redhat
redhatkernel-rt-0:4.18.0-425.3.1.rt7.213.el82022-11-08redhat
redhatkernel-rt-0:5.14.0-70.26.1.rt21.98.el9_02022-09-20redhat
redhatkernel-0:5.14.0-70.26.1.el9_02022-09-20redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (13 versions)
  • every version up to 5.10.120-1: fixed in 5.10.120-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 5.18.2-1: fixed in 5.18.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 5.18.2-1: fixed in 5.18.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 5.18.2-1: fixed in 5.18.2-1
—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

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 8× in last 7d / 39× 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 97 of 208 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 111 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:28 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  2. 2026-10-22 16:30 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  3. 2026-10-21 16:28 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
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  5. 2026-10-19 16:28 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  6. 2026-10-18 16:28 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  7. 2026-10-18 08:45 UTCEG score recompute
  8. 2026-10-17 16:29 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  9. 2026-10-16 16:34 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  10. 2026-10-15 16:28 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  11. 2026-10-14 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  12. 2026-10-14 13:44 UTCVendor advisory
  13. 2026-10-14 13:43 UTCGHSA enrichmentGHSA-j976-mwc8-7r2m · GitHub CVSS 5.5
  14. 2026-10-14 13:01 UTCEG score recompute
  15. 2026-10-14 13:01 UTCVendor advisory
  16. 2026-10-14 13:01 UTCGHSA enrichmentGHSA-j976-mwc8-7r2m · GitHub CVSS 5.5
  17. 2026-10-13 16:29 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  18. 2026-10-12 19:02 UTCEG score recompute
  19. 2026-10-12 16:30 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  20. 2026-10-11 23:28 UTCEG score recompute
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  1. 2026-10-06 15:14 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  3. 2026-10-04 23:19 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  5. 2026-10-02 16:23 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  6. 2026-09-30 15:48 UTCEG score recompute
  7. 2026-09-30 15:00 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  8. 2026-09-29 15:16 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  9. 2026-09-28 13:48 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  10. 2026-09-27 13:42 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  12. 2026-09-26 00:22 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  13. 2026-09-24 18:16 UTCOSV refresh
  14. 2026-09-24 14:00 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  15. 2026-09-23 13:45 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
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  30. 2026-09-05 10:18 UTCOSV refresh
  31. 2026-09-04 13:57 UTCEPSS rescoreEPSS 1.0% · 61st percentile
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  38. 2026-08-27 14:22 UTCEPSS rescoreEPSS 1.0% · 61st percentile
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  45. 2026-08-19 17:01 UTCEPSS rescoreEPSS 1.0% · 60th percentile
  46. 2026-08-18 20:40 UTCOSV refresh
  47. 2026-08-18 13:45 UTCEPSS rescoreEPSS 1.0% · 60th percentile
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  61. 2026-08-04 10:35 UTCEPSS rescoreEPSS 1.0% · 59th percentile
  62. 2026-08-03 16:57 UTCOSV refresh
  63. 2026-08-03 10:33 UTCEPSS rescoreEPSS 1.0% · 59th percentile
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Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). Defenders should treat patch urgency accordingly.

Frequently asked(5)

What is CVE-2022-2078?
CVE-2022-2078 is a medium-severity vulnerability; its CVE record was published on June 30, 2022. A vulnerability was found in the Linux kernel's nftsetdescconcatparse() function .This flaw allows an attacker to trigger a buffer overflow via nftsetdescconcatparse() , causing a denial of service and possibly to run code.
When was the CVE record for CVE-2022-2078 published?
The CVE record for CVE-2022-2078 was published on June 30, 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-2022-2078 actively exploited?
CVE-2022-2078 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% probability of exploitation in the next 30 days (63rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-2078?
CVE-2022-2078 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2022-2078?
A fix for CVE-2022-2078 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-2078 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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