CVE-2022-36980 in the critical feed json
This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche 6.3.2.3490.
published 2023-03-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-39637
- cvss
- 9.4
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 82.4%
- EPSS 82.4% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 0
- none known
Summary
This vulnerability allows remote attackers to bypass authentication on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the EnterpriseServer service. The issue results from the lack of proper locking when performing operations during authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-15528.
Patch / fix
- ivanti avalanche 6.3.4
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction
82.42% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 9.4 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Ivanti Avalanche
Classification
- Weakness
-
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
References
-
download.wavelink.com
/Files/avalanche_v6.3.4_release_notes.txt
release-notes
-
zerodayinitiative.com
/advisories/ZDI-22-785/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2022-36980
- NVD CVE-2022-36980
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