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Logback CVE-2017-5929

CRITICAL
Deserialization of Untrusted Data (CWE-502)
2017-03-13 cve@mitre.org
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A08:2025 - Software or Data Integrity Failures
ASVS 5.0
V1 - Encoding and Sanitization Safe deserialization, type allowlists
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 10.14%.

Exploit ScenarioDerived

A remote attacker could execute arbitrary code through malicious serialized objects by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 10.1% exploitation probability (EPSS)

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AnalysisAI

QOS.ch Logback before 1.2.0 has a serialization vulnerability affecting the SocketServer and ServerSocketReceiver components. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 10.1%.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Avoid deserializing untrusted data. Use safe serialization formats (JSON). Implement integrity checks and type allowlists.

Affected Packages

maven ch.qos.logback:logback-classic fix: 1.2.0
maven ch.qos.logback:logback-core fix: 1.2.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in maven

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Deserialization of Untrusted Data (CWE-502), which allows attackers to execute arbitrary code through malicious serialized objects. QOS.ch Logback before 1.2.0 has a serialization vulnerability affecting the SocketServer and ServerSocketReceiver components. Affected products include: Qos Logback, Redhat Satellite, Redhat Satellite Capsule. Version information: before 1.2.0.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

QOS.ch Logback before 1.2.0 has a serialization vulnerability affecting the SocketServer and ServerSocketReceiver components.

Threat Intelligence Overview

EPSS Score
10.1%
Top 7% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 10.1%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

59
Low Medium High Critical
KEV: 0
EPSS: +10
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Insecure deserialization occurs when an application converts serialized data (a stream of bytes representing an object's state) back into a living object without proper validation.

Affected Products (CPE)CVE.org

cpe:2.3:a:qos:logback:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite:6.4:*:*:*:*:*:*:*
cpe:2.3:a:redhat:satellite_capsule:6.4:*:*:*:*:*:*:*

References

Advisories & patches
ADVISORY https://logback.qos.ch/news.html REF https://access.redhat.com/errata/RHSA-2017:1675 REF https://access.redhat.com/errata/RHSA-2017:1676 REF https://access.redhat.com/errata/RHSA-2017:1832 REF https://access.redhat.com/errata/RHSA-2018:2927 REF https://lists.apache.org/thread.html/18d509024d9aeb07f0e9579066f80bf5d4dcf20467b0c240043890d1%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/a6db61616180d73711d6db25703085940026e2dbc40f153f9d22b203%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/fa4eaaa6ff41ac6f79811e053c152ee89b7c5da8a6ac848ae97df67f%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r0bb19330e48d5ad784fa20dacba9e5538d8d60f5cd9142e0f1432b4b%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r2a08573ddee4a86dc96d469485a5843a01710ee0dc2078dfca410c79%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r2c2d57ca180e8173c90fe313ddf8eabbdcf8e3ae196f8b9f42599790%40%3Ccommits.mnemonic.apache.org%3E REF https://lists.apache.org/thread.html/r397bf63783240fbb5713389d3f889d287ae0c11509006700ac720037%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r4673642893562c58cbee60c151ded6c077e8a2d02296e862224a9161%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r632ec30791b441e2eb5a3129532bf1b689bf181d0ef7daf50bcf0fd6%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r718f27bed898008a8e037d9cc848cfc1df4d18abcbaee0cb0c142cfb%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/r967953a14e05016bc4bcae9ef3dd92e770181158b4246976ed8295c9%40%3Cdev.brooklyn.apache.org%3E REF https://lists.apache.org/thread.html/ra007cec726a3927c918ec94c4316d05d1829c49eae8dc3648adc35e2%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/rbb4dfca2f7e3e8f3570eec21c79832d33a51dfde6762725660b60169%40%3Cdev.mnemonic.apache.org%3E REF https://lists.apache.org/thread.html/rc5f0cc2f3b153bdf15ee7389d78585829abc9c7af4d322ba1085dd3e%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/rd2227af3c9ada2a72dc72ed05517f5857a34d487580e1f2803922ff9%40%3Ccommits.cassandra.apache.org%3E REF https://lists.apache.org/thread.html/re9b787727291786dfe088e3cd078c7d195c0b5781e15d3cd24a3b2fc%40%3Cdev.mnemonic.apache.org%3E

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