Vulnerability-Lookup

GHSA-8G52-RHVW-9278

Vulnerability from github – Published: 2025-07-11 15:31 – Updated: 2025-08-20 21:30

Details

An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a memory corruption that leads to a rpd crash.

When the logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.

Continued receipt of these specific updates will cause a sustained Denial of Service condition.

This issue affects Junos OS:

All versions before 21.2R3-S9,
All versions of 21.4,
All versions of 22.2,
from 22.4 before 22.4R3-S7,
from 23.2 before 23.2R2-S3,
from 23.4 before 23.4R2-S4,
from 24.2 before 24.2R2.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.1 (High)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-52955"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-131"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-11T15:15:26Z",
    "severity": "HIGH"
  },
  "details": "An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a memory corruption that leads\u00a0to a rpd crash.\u00a0\n\n\n\n\n\n\n\n\n\n\n\nWhen\nthe logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart.\u00a0\n\n\nContinued receipt of these specific updates will cause a sustained Denial of Service condition.\n\n\nThis issue affects Junos OS:\n\n  *  All versions before 21.2R3-S9, \n  *  All versions of 21.4, \n  *  All versions of 22.2, \n  *  from 22.4 before 22.4R3-S7, \n  *  from 23.2 before 23.2R2-S3, \n  *  from 23.4 before 23.4R2-S4, \n  *  from 24.2 before 24.2R2.",
  "id": "GHSA-8g52-rhvw-9278",
  "modified": "2025-08-20T21:30:23Z",
  "published": "2025-07-11T15:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52955"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA100062"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-52955 (GCVE-0-2025-52955)

Vulnerability from cvelistv5 – Published: 2025-07-11 14:42 – Updated: 2025-08-20 18:32

Title

Junos OS and Junos OS Evolved: When jflow/sflow is configured continuous logical interface flaps causes rpd crash and restart

Summary

An Incorrect Calculation of Buffer Size vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a memory corruption that leads to a rpd crash. When the logical interface using a routing instance flaps continuously, specific updates are sent to the jflow/sflow modules. This results in memory corruption, leading to an rpd crash and restart. Continued receipt of these specific updates will cause a sustained Denial of Service condition. This issue affects Junos OS: * All versions before 21.2R3-S9, * All versions of 21.4, * All versions of 22.2, * from 22.4 before 22.4R3-S7, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2. Junos OS Evolved: * All versions of 21.2-EVO, * All versions of 21.4-EVO, * All versions of 22.2-EVO, * from 22.4 before 22.4R3-S7-EVO, * from 23.2 before 23.2R2-S3-EVO, * from 23.4 before 23.4R2-S4-EVO, * from 24.2 before 24.2R2-EVO.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.1 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A/U:Green

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-11 20:09 UTC

CWE

CWE-131 - Incorrect Calculation of Buffer Size

Assigner

juniper mitre root Scorecard

References

1 reference

URL	Tags
https://supportportal.juniper.net/JSA100062	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 0 , < 21.2R3-S9 (semver) Affected: 21.4 , < 21.4* (semver) Affected: 22.2 , < 22.2* (semver) Affected: 22.4 , < 22.4R3-S7 (semver) Affected: 23.2 , < 23.2R2-S3 (semver) Affected: 23.4 , < 23.4R2-S4 (semver) Affected: 24.2 , < 24.2R2 (semver)
Juniper Networks	Junos OS Evolved	Affected: 0 , < 21.2-EVO (semver) Affected:* 21.4 , < 21.4-EVO (semver) Affected:* 22.2 , < 22.2-EVO (semver) Affected:* 22.4 , < 22.4R3-S7-EVO (semver) Affected: 23.2 , < 23.2R2-S3-EVO (semver) Affected: 23.4 , < 23.4R2-S4-EVO (semver) Affected: 24.2 , < 24.2R2-EVO (semver)

Date Public

2025-07-09 16:00

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-52955",
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                "timestamp": "2025-07-11T20:09:13.568277Z",
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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.

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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Action not permitted

GHSA-8G52-RHVW-9278

CVE-2025-52955 (GCVE-0-2025-52955)

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