CVE-2023-22496

HIGHNVD 8.18.2
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 8.2 because EPSS predicted 36% probability of exploitation within the next 30 days (98th percentile of EPSS-scored CVEs) when EchelonGraph scored this CVE. NVD baseline CVSS 8.1 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: EPSS, NVD CVSS v3
Elevated
8.2EG
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: 36%CVSS: 8.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Netdata is an open source option for real-time infrastructure monitoring and troubleshooting. An attacker with the ability to establish a streaming connection can execute arbitrary commands on the targeted Netdata agent. When an alert is triggered, the function health_alarm_execute is called. This function performs different checks and then enqueues a command by calling spawn_enq_cmd. This command is populated with several arguments that are not sanitized. One of them is the registry_hostname of the node for which the alert is raised. By providing a specially crafted registry_hostname as part of the health data that is streamed to a Netdata (parent) agent, an attacker can execute arbitrary commands at the remote host as a side-effect of the raised alert. Note that the commands are executed as the user running the Netdata Agent. This user is usually named netdata. The ability to run arbitrary commands may allow an attacker to escalate privileges by escalating other vulnerabilities in the system, as that user. The problem has been fixed in: Netdata agent v1.37 (stable) and Netdata agent v1.36.0-409 (nightly). As a workaround, streaming is not enabled by default. If you have previously enabled this, it can be disabled. Limiting access to the port on the recipient Agent to trusted child connections may mitigate the impact of this vulnerability.

CVSS v3
8.1
EG Score
8.2HIGHhigh confidence
EG Risk
52
EG Risk 52/100

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)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 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
36%
EPSS %ILE
98th
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is EPSS's lift toward 9.0 from its impact severity (EG Severity, CVSS 8.1 HIGH): a likelihood of exploitation, not impact.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
36% 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

January 14, 2023

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Sep 16, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Netdata Streaming Alert Command Injection · Advisory · netdata/netdata · GitHub

https://github.com/netdata/netdata/security/advisories/GHSA-xg38-3vmw-2978

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
netdata1.29.3-4 ... 2.0.3+dfsg-5 (52 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
netdata—
  • every version up to 1.37.0-1: fixed in 1.37.0-1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 32× 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 90 of 170 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. 10 repeat rows among the latest 100 are merged into the row they repeat. The 80 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  2. 2026-10-22 16:30 UTCEPSS rescoreEPSS 36% · 98th percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  4. 2026-10-21 04:58 UTCEG score recompute
  5. 2026-10-20 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  6. 2026-10-19 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  7. 2026-10-18 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  8. 2026-10-18 08:13 UTCEG score recompute
  9. 2026-10-17 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  10. 2026-10-16 16:35 UTCEPSS rescoreEPSS 36% · 98th percentile
  11. 2026-10-15 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  12. 2026-10-15 03:24 UTCOSV refresh
  13. 2026-10-14 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  14. 2026-10-13 16:29 UTCEPSS rescoreEPSS 36% · 98th percentile
  15. 2026-10-12 18:36 UTCEG score recompute
  16. 2026-10-11 21:59 UTCEG score recompute
  17. 2026-10-11 13:45 UTCEPSS rescoreEPSS 36% · 98th percentile
  18. 2026-10-10 19:57 UTCEPSS rescoreEPSS 36% · 98th percentile
  19. 2026-10-09 20:05 UTCEPSS rescoreEPSS 36% · 98th percentile
  20. 2026-10-08 17:05 UTCEPSS rescoreEPSS 36% · 98th percentile
  21. 2026-10-07 23:45 UTCEPSS rescoreEPSS 36% · 98th percentile
  22. 2026-10-06 15:14 UTCEPSS rescoreEPSS 36% · 98th percentile
  23. 2026-10-04 23:19 UTCEPSS rescoreEPSS 36% · 98th percentile
  24. 2026-10-03 14:23 UTCEPSS rescoreEPSS 36% · 98th percentile
  25. 2026-10-02 16:23 UTCEPSS rescoreEPSS 36% · 98th percentile
Show 65 more
  1. 2026-10-01 19:47 UTCEPSS rescoreEPSS 36% · 98th percentile
  2. 2026-09-30 16:17 UTCEG score recompute
  3. 2026-09-30 15:01 UTCEPSS rescoreEPSS 36% · 98th percentile
  4. 2026-09-29 15:16 UTCEPSS rescoreEPSS 36% · 98th percentile
  5. 2026-09-26 15:55 UTCEPSS rescoreEPSS 36% · 98th percentile
  6. 2026-09-26 00:22 UTCEPSS rescoreEPSS 36% · 98th percentile
  7. 2026-09-24 14:01 UTCEPSS rescoreEPSS 36% · 98th percentile
  8. 2026-09-24 00:36 UTCOSV refresh
  9. 2026-09-23 13:45 UTCEPSS rescoreEPSS 36% · 98th percentile
  10. 2026-09-22 14:45 UTCEPSS rescoreEPSS 36% · 98th percentile
  11. 2026-09-19 15:38 UTCEPSS rescoreEPSS 36% · 98th percentile
  12. 2026-09-18 19:25 UTCEPSS rescoreEPSS 36% · 98th percentile
  13. 2026-09-17 19:24 UTCEPSS rescoreEPSS 36% · 98th percentile
  14. 2026-09-16 14:05 UTCEPSS rescoreEPSS 36% · 98th percentile
  15. 2026-09-16 05:11 UTCEPSS rescoreEPSS 36% · 98th percentile
  16. 2026-09-15 03:07 UTCEPSS rescoreEPSS 36% · 98th percentile
  17. 2026-09-12 14:58 UTCEPSS rescoreEPSS 36% · 98th percentile
  18. 2026-09-11 09:34 UTCEPSS rescoreEPSS 36% · 98th percentile
  19. 2026-09-08 21:57 UTCEPSS rescoreEPSS 36% · 98th percentile
  20. 2026-09-06 13:45 UTCEPSS rescoreEPSS 36% · 98th percentile
  21. 2026-09-05 15:25 UTCEPSS rescoreEPSS 36% · 98th percentile
  22. 2026-09-04 18:29 UTCOSV refresh
  23. 2026-09-04 13:57 UTCEPSS rescoreEPSS 36% · 98th percentile
  24. 2026-09-04 05:04 UTCEPSS rescoreEPSS 36% · 98th percentile
  25. 2026-09-02 14:09 UTCEPSS rescoreEPSS 36% · 98th percentile
  26. 2026-09-01 13:51 UTCEPSS rescoreEPSS 36% · 98th percentile
  27. 2026-08-30 19:15 UTCEPSS rescoreEPSS 36% · 98th percentile
  28. 2026-08-30 01:19 UTCEPSS rescoreEPSS 36% · 98th percentile
  29. 2026-08-28 21:38 UTCEPSS rescoreEPSS 36% · 98th percentile
  30. 2026-08-26 14:43 UTCEPSS rescoreEPSS 36% · 98th percentile
  31. 2026-08-25 13:46 UTCEPSS rescoreEPSS 36% · 98th percentile
  32. 2026-08-24 14:14 UTCEPSS rescoreEPSS 36% · 98th percentile
  33. 2026-08-21 23:46 UTCEPSS rescoreEPSS 36% · 98th percentile
  34. 2026-08-20 22:53 UTCEPSS rescoreEPSS 36% · 98th percentile
  35. 2026-08-19 17:01 UTCEPSS rescoreEPSS 36% · 98th percentile
  36. 2026-08-18 13:46 UTCEPSS rescoreEPSS 36% · 98th percentile
  37. 2026-08-18 05:34 UTCOSV refresh
  38. 2026-08-16 14:53 UTCEPSS rescoreEPSS 36% · 98th percentile
  39. 2026-08-16 02:12 UTCEPSS rescoreEPSS 36% · 98th percentile
  40. 2026-08-15 01:27 UTCEPSS rescoreEPSS 36% · 98th percentile
  41. 2026-08-13 21:58 UTCEPSS rescoreEPSS 36% · 98th percentile
  42. 2026-08-12 13:48 UTCEPSS rescoreEPSS 36% · 98th percentile
  43. 2026-08-07 16:24 UTCEPSS rescoreEPSS 36% · 98th percentile
  44. 2026-08-05 19:15 UTCEPSS rescoreEPSS 36% · 98th percentile
  45. 2026-08-04 15:07 UTCEPSS rescoreEPSS 36% · 98th percentile
  46. 2026-08-03 00:27 UTCOSV refresh
  47. 2026-08-01 04:13 UTCEPSS rescoreEPSS 36% · 98th percentile
  48. 2026-07-30 16:26 UTCEPSS rescoreEPSS 36% · 98th percentile
  49. 2026-07-30 01:28 UTCEPSS rescoreEPSS 36% · 98th percentile
  50. 2026-07-28 15:34 UTCEPSS rescoreEPSS 36% · 98th percentile
  51. 2026-07-26 14:52 UTCEPSS rescoreEPSS 36% · 98th percentile
  52. 2026-07-25 14:16 UTCEPSS rescoreEPSS 36% · 98th percentile
  53. 2026-07-24 14:15 UTCEPSS rescoreEPSS 36% · 98th percentile
  54. 2026-07-23 14:16 UTCEPSS rescoreEPSS 36% · 98th percentile
  55. 2026-07-23 02:18 UTCEG score recompute▲ 0.10
  56. 2026-07-22 23:06 UTCEG score recompute
  57. 2026-07-22 14:06 UTCEPSS rescoreEPSS 36% · 98th percentile
  58. 2026-07-21 15:23 UTCEPSS rescoreEPSS 36% · 98th percentile
  59. 2026-07-20 17:05 UTCEPSS rescoreEPSS 36% · 98th percentile
  60. 2026-07-19 02:27 UTCEPSS rescoreEPSS 36% · 98th percentile
  61. 2026-07-18 10:03 UTCEPSS rescoreEPSS 36% · 98th percentile
  62. 2026-07-16 17:01 UTCEPSS rescoreEPSS 36% · 98th percentile
  63. 2026-07-16 08:53 UTCOSV refresh
  64. 2026-07-15 16:56 UTCEPSS rescoreEPSS 36% · 98th percentile
  65. 2026-07-15 01:58 UTCEPSS rescoreEPSS 36% · 98th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-22496?
CVE-2023-22496 is a high-severity vulnerability; its CVE record was published on January 14, 2023. Netdata is an open source option for real-time infrastructure monitoring and troubleshooting. An attacker with the ability to establish a streaming connection can execute arbitrary commands on the targeted Netdata agent. When an alert is triggered, the function healthalarmexecute is called. This…
When was the CVE record for CVE-2023-22496 published?
The CVE record for CVE-2023-22496 was published on January 14, 2023. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2023-22496 actively exploited?
CVE-2023-22496 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-22496?
CVE-2023-22496 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.2 (HIGH).
How do I remediate CVE-2023-22496?
A fix for CVE-2023-22496 is available: update to the fixed version the vendor names in its advisory.

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