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CNVD-2025-20868

Vulnerability from cnvd - Published: 2025-09-09

Title

Apache Log4cxx输入验证错误漏洞（CNVD-2025-20868）

Description

Apache Log4cxx是美国阿帕奇（Apache）基金会的一个以Apache log4j为模式的C++ 日志框架。 Apache Log4cxx 1.5.0之前版本存在输入验证错误漏洞，该漏洞源于JSONLayout未正确转义所有有效载荷字节，攻击者可利用该漏洞导致日志解析错误。

Severity

高

Patch Name

Apache Log4cxx输入验证错误漏洞（CNVD-2025-20868）的补丁

Patch Description

Apache Log4cxx是美国阿帕奇（Apache）基金会的一个以Apache log4j为模式的C++ 日志框架。 Apache Log4cxx 1.5.0之前版本存在输入验证错误漏洞，该漏洞源于JSONLayout未正确转义所有有效载荷字节，攻击者可利用该漏洞导致日志解析错误。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://logging.apache.org/security.html#CVE

Reference

https://logging.apache.org/security.html#CVE-2025-54813

Impacted products

Name
Apache Log4cxx <1.5.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-54813",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-54813"
    }
  },
  "description": "Apache Log4cxx\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u4e2a\u4ee5Apache log4j\u4e3a\u6a21\u5f0f\u7684C++ \u65e5\u5fd7\u6846\u67b6\u3002\n\nApache Log4cxx 1.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eJSONLayout\u672a\u6b63\u786e\u8f6c\u4e49\u6240\u6709\u6709\u6548\u8f7d\u8377\u5b57\u8282\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u65e5\u5fd7\u89e3\u6790\u9519\u8bef\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://logging.apache.org/security.html#CVE",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-20868",
  "openTime": "2025-09-09",
  "patchDescription": "Apache Log4cxx\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u4e2a\u4ee5Apache log4j\u4e3a\u6a21\u5f0f\u7684C++ \u65e5\u5fd7\u6846\u67b6\u3002\r\n\r\nApache Log4cxx 1.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eJSONLayout\u672a\u6b63\u786e\u8f6c\u4e49\u6240\u6709\u6709\u6548\u8f7d\u8377\u5b57\u8282\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u65e5\u5fd7\u89e3\u6790\u9519\u8bef\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Apache Log4cxx\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2025-20868\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Apache Log4cxx \u003c1.5.0"
  },
  "referenceLink": "https://logging.apache.org/security.html#CVE-2025-54813",
  "serverity": "\u9ad8",
  "submitTime": "2025-08-26",
  "title": "Apache Log4cxx\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2025-20868\uff09"
}

CVE-2025-54813 (GCVE-0-2025-54813)

Vulnerability from cvelistv5 – Published: 2025-08-22 18:45 – Updated: 2025-11-04 21:12

Title

Apache Log4cxx: Improper escaping with JSONLayout

Summary

Improper Output Neutralization for Logs vulnerability in Apache Log4cxx. When using JSONLayout, not all payload bytes are properly escaped. If an attacker-supplied message contains certain non-printable characters, these will be passed along in the message and written out as part of the JSON message. This may prevent applications that consume these logs from correctly interpreting the information within them. This issue affects Apache Log4cxx: before 1.5.0. Users are recommended to upgrade to version 1.5.0, which fixes the issue.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-22 19:05 UTC

CWE

CWE-117 - Improper Output Neutralization for Logs

Assigner

apache mitre root

References

4 references

URL	Tags
https://logging.apache.org/security.html#CVE-2025-54813	vendor-advisory
https://github.com/apache/logging-log4cxx/pull/512	patch
https://lists.debian.org/debian-lts-announce/2025…
http://www.openwall.com/lists/oss-security/2025/08/22/3

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Log4cxx	Affected: 0.11.0 , < 1.5.0 (semver)

Credits

Sovereign Tech Agency

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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          {
            "other": {
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                "id": "CVE-2025-54813",
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                  },
                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-22T19:05:35.967614Z",
                "version": "2.0.3"
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      "descriptions": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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