CVE-2023-0777

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 15% (96th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 15%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Authentication Bypass by Primary Weakness in GitHub repository modoboa/modoboa prior to 2.0.4.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100CISA SSVC

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
Severity98% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
15%
EPSS %ILE
96th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

February 10, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Oct 10, 2026
Patch available. Sources: github_commit.
generic

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https://huntr.dev/bounties/a17e7a9f-0fee-4130-a522-5a0466fc17c7
github_commit Patch Available

commit 47d17ac6643f (modoboa/modoboa)

Patch available: modoboa/modoboa 2.4.4 (contains commit 47d17ac6643f)

https://github.com/modoboa/modoboa/commit/47d17ac6643f870719691073956a26e4be0a4806
generic

Packet Storm

http://packetstormsecurity.com/files/171744/modoboa-2.0.4-Admin-Takeover.html

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
modoboa0.7.0 ... 0.1 (95 versions)
  • every version up to 2.0.4: fixed in 2.0.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 21× 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 154 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

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

  • Exploit-DBEDB-51276
    First seen Apr 6, 2023

    modoboa 2.0.4 - Admin TakeOver

    Open source ↗
  • Nucleihttp/cves/2023/CVE-2023-0777.yaml
    First seen Jan 1, 2023

    modoboa 2.0.4 - Admin TakeOver

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-0777?
CVE-2023-0777 is a critical vulnerability published on February 10, 2023. Authentication Bypass by Primary Weakness in GitHub repository modoboa/modoboa prior to 2.0.4.
When was CVE-2023-0777 disclosed?
CVE-2023-0777 was first published on February 10, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-0777 actively exploited?
CVE-2023-0777 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 15% probability of exploitation in the next 30 days (96th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-0777?
CVE-2023-0777 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-0777?
A fix for CVE-2023-0777 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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