CVE-2023-36846

MEDIUMNVD 5.39.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-11-13), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 5.3 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
5.3
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 94%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.

With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of

integrity

for a certain 

part of the file system, which may allow chaining to other vulnerabilities.

This issue affects Juniper Networks Junos OS on SRX Series:

* All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions

prior to

21.3R3-S5; * 21.4 versions

prior to

21.4R3-S5; * 22.1 versions

prior to

22.1R3-S3; * 22.2 versions

prior to

22.2R3-S2; * 22.3 versions

prior to

22.3R2-S2, 22.3R3; * 22.4 versions

prior to

22.4R2-S1, 22.4R3.

CVSS v3
5.3
EG Score
9.0(high)
EG Risk
96(Act)
EG Risk 96/100SSVC: Act

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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS
99.8%
KEV
⚠ Exploited

Published

August 17, 2023

Last Modified

February 26, 2026

Advisory Details (2)

Auto-updated Jun 13, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36846
generic

CEC Juniper Community

https://supportportal.juniper.net/JSA72300

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 182× 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 352 total refreshes for this CVE.

  1. 2026-07-23 02:24 UTCEG score recompute
  2. 2026-07-22 21:38 UTCEG score recompute
  3. 2026-07-22 21:38 UTCGHSA enrichment
  4. 2026-07-22 19:40 UTCCISA KEV update
  5. 2026-07-22 16:59 UTCEG score recompute
  6. 2026-07-22 16:59 UTCGHSA enrichment
  7. 2026-07-22 14:06 UTCEPSS rescore
  8. 2026-07-22 12:40 UTCGHSA enrichment
  9. 2026-07-22 08:21 UTCGHSA enrichment
  10. 2026-07-22 04:02 UTCGHSA enrichment
  11. 2026-07-21 23:42 UTCGHSA enrichment
  12. 2026-07-21 19:13 UTCGHSA enrichment
  13. 2026-07-21 14:54 UTCGHSA enrichment
  14. 2026-07-21 14:37 UTCCISA KEV update
  15. 2026-07-21 10:36 UTCGHSA enrichment
  16. 2026-07-21 06:14 UTCGHSA enrichment
  17. 2026-07-21 01:56 UTCGHSA enrichment
  18. 2026-07-20 21:37 UTCGHSA enrichment
  19. 2026-07-20 17:19 UTCGHSA enrichment
  20. 2026-07-20 13:00 UTCGHSA enrichment
  21. 2026-07-20 08:41 UTCGHSA enrichment
  22. 2026-07-20 04:22 UTCGHSA enrichment
  23. 2026-07-19 19:43 UTCGHSA enrichment
  24. 2026-07-19 15:24 UTCGHSA enrichment
  25. 2026-07-19 11:04 UTCGHSA enrichment
Show 75 more
  1. 2026-07-19 06:45 UTCGHSA enrichment
  2. 2026-07-19 02:26 UTCGHSA enrichment
  3. 2026-07-18 22:07 UTCGHSA enrichment
  4. 2026-07-18 17:48 UTCGHSA enrichment
  5. 2026-07-18 13:29 UTCGHSA enrichment
  6. 2026-07-18 09:09 UTCGHSA enrichment
  7. 2026-07-18 04:50 UTCGHSA enrichment
  8. 2026-07-18 00:30 UTCGHSA enrichment
  9. 2026-07-17 20:11 UTCGHSA enrichment
  10. 2026-07-17 15:52 UTCGHSA enrichment
  11. 2026-07-17 11:33 UTCGHSA enrichment
  12. 2026-07-17 07:12 UTCEG score recompute
  13. 2026-07-17 07:12 UTCGHSA enrichment
  14. 2026-07-17 02:52 UTCGHSA enrichment
  15. 2026-07-16 22:34 UTCGHSA enrichment
  16. 2026-07-16 18:15 UTCGHSA enrichment
  17. 2026-07-16 17:04 UTCCISA KEV update
  18. 2026-07-16 13:56 UTCGHSA enrichment
  19. 2026-07-16 09:38 UTCGHSA enrichment
  20. 2026-07-16 05:19 UTCGHSA enrichment
  21. 2026-07-16 01:00 UTCGHSA enrichment
  22. 2026-07-15 20:41 UTCGHSA enrichment
  23. 2026-07-15 16:56 UTCEPSS rescore
  24. 2026-07-15 16:56 UTCEPSS rescore
  25. 2026-07-15 16:49 UTCCISA KEV update
  26. 2026-07-15 16:21 UTCGHSA enrichment
  27. 2026-07-15 15:04 UTCCISA KEV update
  28. 2026-07-15 12:02 UTCGHSA enrichment
  29. 2026-07-15 07:42 UTCGHSA enrichment
  30. 2026-07-15 03:23 UTCGHSA enrichment
  31. 2026-07-14 23:04 UTCGHSA enrichment
  32. 2026-07-14 18:45 UTCGHSA enrichment
  33. 2026-07-14 18:05 UTCCISA KEV update
  34. 2026-07-14 14:24 UTCGHSA enrichment
  35. 2026-07-14 10:05 UTCGHSA enrichment
  36. 2026-07-14 05:46 UTCGHSA enrichment
  37. 2026-07-14 01:28 UTCGHSA enrichment
  38. 2026-07-13 21:09 UTCGHSA enrichment
  39. 2026-07-13 17:07 UTCCISA KEV update
  40. 2026-07-13 16:50 UTCGHSA enrichment
  41. 2026-07-13 12:31 UTCGHSA enrichment
  42. 2026-07-13 08:12 UTCGHSA enrichment
  43. 2026-07-13 03:53 UTCGHSA enrichment
  44. 2026-07-12 23:35 UTCGHSA enrichment
  45. 2026-07-12 19:16 UTCGHSA enrichment
  46. 2026-07-12 14:57 UTCGHSA enrichment
  47. 2026-07-12 10:38 UTCGHSA enrichment
  48. 2026-07-12 06:20 UTCGHSA enrichment
  49. 2026-07-12 05:45 UTCEPSS rescore
  50. 2026-07-12 02:01 UTCGHSA enrichment
  51. 2026-07-11 21:42 UTCGHSA enrichment
  52. 2026-07-11 17:24 UTCGHSA enrichment
  53. 2026-07-11 13:05 UTCGHSA enrichment
  54. 2026-07-11 08:46 UTCGHSA enrichment
  55. 2026-07-11 08:26 UTCEPSS rescore
  56. 2026-07-11 08:25 UTCEPSS rescore
  57. 2026-07-11 04:27 UTCGHSA enrichment
  58. 2026-07-11 00:08 UTCGHSA enrichment
  59. 2026-07-10 19:49 UTCGHSA enrichment
  60. 2026-07-10 17:52 UTCCISA KEV update
  61. 2026-07-10 15:30 UTCGHSA enrichment
  62. 2026-07-10 11:10 UTCGHSA enrichment
  63. 2026-07-10 06:52 UTCGHSA enrichment
  64. 2026-07-10 02:31 UTCGHSA enrichment
  65. 2026-07-09 22:11 UTCGHSA enrichment
  66. 2026-07-09 19:08 UTCEPSS rescore
  67. 2026-07-09 19:08 UTCEPSS rescore
  68. 2026-07-09 17:52 UTCGHSA enrichment
  69. 2026-07-09 13:32 UTCGHSA enrichment
  70. 2026-07-09 09:12 UTCGHSA enrichment
  71. 2026-07-09 04:54 UTCGHSA enrichment
  72. 2026-07-09 00:33 UTCGHSA enrichment
  73. 2026-07-08 20:13 UTCGHSA enrichment
  74. 2026-07-08 15:53 UTCGHSA enrichment
  75. 2026-07-08 15:13 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCChocapikk/CVE-2023-36846
    First seen Aug 29, 2023

    Remote Code Execution on Junos OS CVE-2023-36846

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2023-36846?
CVE-2023-36846 is a medium vulnerability published on August 17, 2023. A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication an attacker is able…
When was CVE-2023-36846 disclosed?
CVE-2023-36846 was first published in the National Vulnerability Database on August 17, 2023, with the most recent update on February 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-36846 actively exploited?
Yes. CISA added CVE-2023-36846 to the Known Exploited Vulnerabilities catalog on November 13, 2023, affecting Juniper Junos OS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-36846?
CVE-2023-36846 has a CVSS v3 base score of 5.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-36846?
CVE-2023-36846 affects Juniper Junos OS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-36846?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-36846, 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

Explore the affected products and dependency analysis for CVE-2023-36846

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