CVE-2025-3576 (GCVE-0-2025-3576)

Vulnerability from cvelistv5 – Published: 2025-04-15 05:55 – Updated: 2026-05-12 12:02
VLAI
Title
Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions
Summary
A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Affected: 0 , < 1.22 (semver)
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.21.3-8.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.0
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.18.2-32.el8_10 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8::baseos
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Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:1.17-19.el8_2.3 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.2::baseos
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Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.18.2-9.el8_4.3 , < * (rpm)
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 0:1.18.2-9.el8_4.3 , < * (rpm)
    cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.18.2-16.el8_6.4 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
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Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.18.2-16.el8_6.4 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.18.2-16.el8_6.4 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.6::baseos
    cpe:/o:redhat:rhel_e4s:8.6::baseos
    cpe:/o:redhat:rhel_aus:8.6::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:1.18.2-26.el8_8.5 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/o:redhat:rhel_tus:8.8::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:1.18.2-26.el8_8.5 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.8::baseos
    cpe:/o:redhat:rhel_tus:8.8::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.21.1-8.el9_6 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.19.1-16.el9_0.4 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:9.0::baseos
    cpe:/a:redhat:rhel_e4s:9.0::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.20.1-9.el9_2.3 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2::appstream
    cpe:/o:redhat:rhel_e4s:9.2::baseos
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.21.1-2.el9_4.2 , < * (rpm)
    cpe:/o:redhat:rhel_eus:9.4::baseos
    cpe:/a:redhat:rhel_eus:9.4::appstream
 Create a notification for this product.
Red Hat Red Hat Discovery 2 Unaffected: sha256:c499a099e03c7488ffe50529a34723ade191a89fcfc59d1f0edd01db2b579ca3 , < * (rpm)
    cpe:/a:redhat:discovery:2::el9
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Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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Red Hat Red Hat OpenShift Container Platform 4     cpe:/a:redhat:openshift:4
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Siemens RUGGEDCOM ROX MX5000 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX MX5000RE Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1400 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1500 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1501 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1510 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1511 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1512 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1524 Affected: 0 , < V2.17.1 (custom)
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Siemens RUGGEDCOM ROX RX1536 Affected: 0 , < V2.17.1 (custom)
Create a notification for this product.
Siemens RUGGEDCOM ROX RX5000 Affected: 0 , < V2.17.1 (custom)
Create a notification for this product.
Date Public
2025-04-15 00:00
Show details on NVD website
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If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-328\", \"description\": \"Use of Weak Hash\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-02-17T07:33:07.311Z\"}, \"x_redhatCweChain\": \"CWE-328: Use of Weak Hash\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-3576\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-17T07:33:07.311Z\", \"dateReserved\": \"2025-04-14T09:53:43.906Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2025-04-15T05:55:26.732Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.