CVE-2023-0833

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 4.7 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2023-09-27) is not newer than that change (2026-06-23), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Red Hat's AMQ-Streams, which ships a version of the OKHttp component with an information disclosure flaw via an exception triggered by a header containing an illegal value. This issue could allow an authenticated attacker to access information outside of their regular permissions.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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.
EPSS PROB
0.4%
EPSS %ILE
36th
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.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

September 27, 2023

Last Modified

June 23, 2026

Advisory Details (5)

Auto-updated Jun 23, 2026
Patch available. Sources: redhat.
Web page

Exception for bad header can leak an Authorization secret · Issue #6738 · square/okhttp · GitHub

https://github.com/square/okhttp/issues/6738
Red HatMentions a patch (unverified)

2169845 – (CVE-2023-0833) CVE-2023-0833 Red Hat A-MQ Streams: component version with information disclosure flaw

https://bugzilla.redhat.com/show_bug.cgi?id=2169845
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2023-0833
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2023:3223
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2023:1241

Vendor Advisories for CVE-2023-0833(2)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatpatch2023-05-18redhat
redhatpatch2023-03-14redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 31× 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 92 of 186 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. 8 repeat rows among the latest 100 are merged into the row they repeat. The 94 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 0.4% · 36th percentile
  2. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-19 16:28 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  5. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  6. 2026-10-18 08:17 UTCEG score recompute
  7. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  8. 2026-10-16 16:35 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  9. 2026-10-15 16:28 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-10-13 01:24 UTCOSV refresh
  13. 2026-10-12 18:39 UTCEG score recompute
  14. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-10-11 22:03 UTCEG score recompute
  16. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  19. 2026-10-08 17:05 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  20. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  24. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  25. 2026-09-30 16:14 UTCEG score recompute
Show 67 more
  1. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  7. 2026-09-22 23:32 UTCOSV refresh
  8. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  9. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-09-15 03:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  12. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  13. 2026-09-11 14:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  14. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  15. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  16. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  17. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-09-03 17:59 UTCOSV refresh
  22. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  26. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  27. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  28. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  29. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  30. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  31. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  32. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  33. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  34. 2026-08-18 13:45 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  35. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  36. 2026-08-17 07:01 UTCOSV refresh
  37. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  38. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  39. 2026-08-15 01:27 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  40. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  41. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  42. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  43. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  44. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  45. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  46. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  47. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  48. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  49. 2026-08-03 10:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  50. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  51. 2026-08-02 02:06 UTCOSV refresh
  52. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  53. 2026-07-30 16:25 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  54. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  55. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  56. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  57. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  58. 2026-07-24 14:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  59. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  60. 2026-07-23 02:17 UTCEG score recompute
  61. 2026-07-22 23:05 UTCEG score recompute▲ 0.80
  62. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  63. 2026-07-21 15:23 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  64. 2026-07-20 17:05 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  65. 2026-07-19 14:29 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  66. 2026-07-19 02:27 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  67. 2026-07-18 10:03 UTCEPSS rescoreEPSS 0.4% · 35th percentile

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-0833?
CVE-2023-0833 is a medium-severity vulnerability; its CVE record was published on September 27, 2023. A flaw was found in Red Hat's AMQ-Streams, which ships a version of the OKHttp component with an information disclosure flaw via an exception triggered by a header containing an illegal value. This issue could allow an authenticated attacker to access information outside of their regular…
When was CVE-2023-0833 made public?
CVE-2023-0833 was made public on February 14, 2023: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on September 27, 2023. EchelonGraph's copy of the record carries a last-modified date of June 23, 2026; the record at its source may have been updated since.
Is CVE-2023-0833 actively exploited?
CVE-2023-0833 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-0833?
CVE-2023-0833 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-0833?
A fix for CVE-2023-0833 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-0833 are linked in the Vendor Advisories panel on this page.

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