CVE-2025-30211
KEX init error results with excessive memory usage
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Attend
*SSVC
Descriptions
Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.1, 26.2.5.10, and 25.3.2.19, a maliciously formed KEX init message can result with high memory usage. Implementation does not verify RFC specified limits on algorithm names (64 characters) provided in KEX init message. Big KEX init packet may lead to inefficient processing of the error data. As a result, large amount of memory will be allocated for processing malicious data. Versions OTP-27.3.1, OTP-26.2.5.10, and OTP-25.3.2.19 fix the issue. Some workarounds are available. One may set option `parallel_login` to `false` and/or reduce the `max_sessions` option.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Attend
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-03-18 CVE Reserved
- 2025-03-28 CVE Published
- 2025-03-28 CVE Updated
- 2025-04-03 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-789: Memory Allocation with Excessive Size Value
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://github.com/erlang/otp/security/advisories/GHSA-vvr3-fjhh-cfwc | X_refsource_confirm |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Erlang Search vendor "Erlang" | Otp Search vendor "Erlang" for product "Otp" | < Search vendor "Erlang" for product "Otp" and version " < " | en |
Affected
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| Erlang Search vendor "Erlang" | Otp Search vendor "Erlang" for product "Otp" | < Search vendor "Erlang" for product "Otp" and version " < " | en |
Affected
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| Erlang Search vendor "Erlang" | Otp Search vendor "Erlang" for product "Otp" | < Search vendor "Erlang" for product "Otp" and version " < " | en |
Affected
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